Finding the Third Proportional to 118,630.50 and 139,545

Step by Step Solution

1. Step 1: Write the proportion equation
   118,630.50 : 139,545 = 139,545 : x
2. Step 2: Convert to fraction form
   118,630.50/139,545 = 139,545/x
3. Step 3: Cross multiply
   118,630.50x = 139,545 × 139,545
4. Step 4: Simplify right side
   118,630.50x = 19,472,807,025
5. Step 5: Solve for x
   x = 19,472,807,025/118,630.50
6. Step 6: Final answer
   x = 164,146.72