Finding the Third Proportional to 149,499 and 249,156

Step by Step Solution

1. Step 1: Write the proportion equation
   149,499 : 249,156 = 249,156 : x
2. Step 2: Convert to fraction form
   149,499/249,156 = 249,156/x
3. Step 3: Cross multiply
   149,499x = 249,156 × 249,156
4. Step 4: Simplify right side
   149,499x = 62,078,712,336
5. Step 5: Solve for x
   x = 62,078,712,336/149,499
6. Step 6: Final answer
   x = 415,245.00