Finding the Third Proportional to 162,498 and 251,122.50

Step by Step Solution

1. Step 1: Write the proportion equation
   162,498 : 251,122.50 = 251,122.50 : x
2. Step 2: Convert to fraction form
   162,498/251,122.50 = 251,122.50/x
3. Step 3: Cross multiply
   162,498x = 251,122.50 × 251,122.50
4. Step 4: Simplify right side
   162,498x = 63,062,510,006.25
5. Step 5: Solve for x
   x = 63,062,510,006.25/162,498
6. Step 6: Final answer
   x = 388,081.76