Finding the Third Proportional to 249,543 and 541,123.50

Step by Step Solution

1. Step 1: Write the proportion equation
   249,543 : 541,123.50 = 541,123.50 : x
2. Step 2: Convert to fraction form
   249,543/541,123.50 = 541,123.50/x
3. Step 3: Cross multiply
   249,543x = 541,123.50 × 541,123.50
4. Step 4: Simplify right side
   249,543x = 292,814,642,252.25
5. Step 5: Solve for x
   x = 292,814,642,252.25/249,543
6. Step 6: Final answer
   x = 1,173,403.55