Finding the Third Proportional to 162,031.50 and 254,515.50

Step by Step Solution

1. Step 1: Write the proportion equation
   162,031.50 : 254,515.50 = 254,515.50 : x
2. Step 2: Convert to fraction form
   162,031.50/254,515.50 = 254,515.50/x
3. Step 3: Cross multiply
   162,031.50x = 254,515.50 × 254,515.50
4. Step 4: Simplify right side
   162,031.50x = 64,778,139,740.25
5. Step 5: Solve for x
   x = 64,778,139,740.25/162,031.50
6. Step 6: Final answer
   x = 399,787.32