Finding the Third Proportional to 129,151 and 173,557.50

Step by Step Solution

1. Step 1: Write the proportion equation
   129,151 : 173,557.50 = 173,557.50 : x
2. Step 2: Convert to fraction form
   129,151/173,557.50 = 173,557.50/x
3. Step 3: Cross multiply
   129,151x = 173,557.50 × 173,557.50
4. Step 4: Simplify right side
   129,151x = 30,122,205,806.25
5. Step 5: Solve for x
   x = 30,122,205,806.25/129,151
6. Step 6: Final answer
   x = 233,232.46