Finding the Third Proportional to 254,988.75 and 375,061.50

Step by Step Solution

1. Step 1: Write the proportion equation
   254,988.75 : 375,061.50 = 375,061.50 : x
2. Step 2: Convert to fraction form
   254,988.75/375,061.50 = 375,061.50/x
3. Step 3: Cross multiply
   254,988.75x = 375,061.50 × 375,061.50
4. Step 4: Simplify right side
   254,988.75x = 140,671,128,782.25
5. Step 5: Solve for x
   x = 140,671,128,782.25/254,988.75
6. Step 6: Final answer
   x = 551,675.82