Finding the Third Proportional to 718,149 and 1,113,514.50

Step by Step Solution

1. Step 1: Write the proportion equation
   718,149 : 1,113,514.50 = 1,113,514.50 : x
2. Step 2: Convert to fraction form
   718,149/1,113,514.50 = 1,113,514.50/x
3. Step 3: Cross multiply
   718,149x = 1,113,514.50 × 1,113,514.50
4. Step 4: Simplify right side
   718,149x = 1,239,914,541,710.25
5. Step 5: Solve for x
   x = 1,239,914,541,710.25/718,149
6. Step 6: Final answer
   x = 1,726,542.18