Finding the Third Proportional to 60,707.50 and 91,061

Step by Step Solution

1. Step 1: Write the proportion equation
   60,707.50 : 91,061 = 91,061 : x
2. Step 2: Convert to fraction form
   60,707.50/91,061 = 91,061/x
3. Step 3: Cross multiply
   60,707.50x = 91,061 × 91,061
4. Step 4: Simplify right side
   60,707.50x = 8,292,105,721
5. Step 5: Solve for x
   x = 8,292,105,721/60,707.50
6. Step 6: Final answer
   x = 136,591.13