Finding the Third Proportional to 168,221.50 and 249,902

Step by Step Solution

1. Step 1: Write the proportion equation
   168,221.50 : 249,902 = 249,902 : x
2. Step 2: Convert to fraction form
   168,221.50/249,902 = 249,902/x
3. Step 3: Cross multiply
   168,221.50x = 249,902 × 249,902
4. Step 4: Simplify right side
   168,221.50x = 62,451,009,604
5. Step 5: Solve for x
   x = 62,451,009,604/168,221.50
6. Step 6: Final answer
   x = 371,242.73