Finding the Third Proportional to 60,139.25 and 91,626.50

Step by Step Solution

1. Step 1: Write the proportion equation
   60,139.25 : 91,626.50 = 91,626.50 : x
2. Step 2: Convert to fraction form
   60,139.25/91,626.50 = 91,626.50/x
3. Step 3: Cross multiply
   60,139.25x = 91,626.50 × 91,626.50
4. Step 4: Simplify right side
   60,139.25x = 8,395,415,502.25
5. Step 5: Solve for x
   x = 8,395,415,502.25/60,139.25
6. Step 6: Final answer
   x = 139,599.60