Finding the Third Proportional to 253,854 and 551,407.50

Step by Step Solution

1. Step 1: Write the proportion equation
   253,854 : 551,407.50 = 551,407.50 : x
2. Step 2: Convert to fraction form
   253,854/551,407.50 = 551,407.50/x
3. Step 3: Cross multiply
   253,854x = 551,407.50 × 551,407.50
4. Step 4: Simplify right side
   253,854x = 304,050,231,056.25
5. Step 5: Solve for x
   x = 304,050,231,056.25/253,854
6. Step 6: Final answer
   x = 1,197,736.62