Finding the Third Proportional to 158,139 and 252,922.50

Step by Step Solution

1. Step 1: Write the proportion equation
   158,139 : 252,922.50 = 252,922.50 : x
2. Step 2: Convert to fraction form
   158,139/252,922.50 = 252,922.50/x
3. Step 3: Cross multiply
   158,139x = 252,922.50 × 252,922.50
4. Step 4: Simplify right side
   158,139x = 63,969,791,006.25
5. Step 5: Solve for x
   x = 63,969,791,006.25/158,139
6. Step 6: Final answer
   x = 404,516.22