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Finding the Third Proportional to 778 and 866

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Solution

The third proportional to 778 and 866 is: 963.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    778 : 866 = 866 : x
  2. Step 2: Convert to fraction form
    778/866 = 866/x
  3. Step 3: Cross multiply
    778x = 866 × 866
  4. Step 4: Simplify right side
    778x = 749,956
  5. Step 5: Solve for x
    x = 749,956/778
  6. Step 6: Final answer
    x = 963.95

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