Finding the Third Proportional to 60,780 and 91,566

Step by Step Solution

1. Step 1: Write the proportion equation
   60,780 : 91,566 = 91,566 : x
2. Step 2: Convert to fraction form
   60,780/91,566 = 91,566/x
3. Step 3: Cross multiply
   60,780x = 91,566 × 91,566
4. Step 4: Simplify right side
   60,780x = 8,384,332,356
5. Step 5: Solve for x
   x = 8,384,332,356/60,780
6. Step 6: Final answer
   x = 137,945.58