Finding the Third Proportional to 60,708 and 91,908.50

Step by Step Solution

1. Step 1: Write the proportion equation
   60,708 : 91,908.50 = 91,908.50 : x
2. Step 2: Convert to fraction form
   60,708/91,908.50 = 91,908.50/x
3. Step 3: Cross multiply
   60,708x = 91,908.50 × 91,908.50
4. Step 4: Simplify right side
   60,708x = 8,447,172,372.25
5. Step 5: Solve for x
   x = 8,447,172,372.25/60,708
6. Step 6: Final answer
   x = 139,144.30