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Finding the Third Proportional to 586 and 978

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Solution

The third proportional to 586 and 978 is: 1,632.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    586 : 978 = 978 : x
  2. Step 2: Convert to fraction form
    586/978 = 978/x
  3. Step 3: Cross multiply
    586x = 978 × 978
  4. Step 4: Simplify right side
    586x = 956,484
  5. Step 5: Solve for x
    x = 956,484/586
  6. Step 6: Final answer
    x = 1,632.23

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