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Finding the Third Proportional to 83,079.75 and 121,842.75

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Solution

The third proportional to 83,079.75 and 121,842.75 is: 178,691.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,079.75 : 121,842.75 = 121,842.75 : x
  2. Step 2: Convert to fraction form
    83,079.75/121,842.75 = 121,842.75/x
  3. Step 3: Cross multiply
    83,079.75x = 121,842.75 × 121,842.75
  4. Step 4: Simplify right side
    83,079.75x = 14,845,655,727.56
  5. Step 5: Solve for x
    x = 14,845,655,727.56/83,079.75
  6. Step 6: Final answer
    x = 178,691.63

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