Finding the Third Proportional to 699,540 and 1,026,345

Step by Step Solution

1. Step 1: Write the proportion equation
   699,540 : 1,026,345 = 1,026,345 : x
2. Step 2: Convert to fraction form
   699,540/1,026,345 = 1,026,345/x
3. Step 3: Cross multiply
   699,540x = 1,026,345 × 1,026,345
4. Step 4: Simplify right side
   699,540x = 1,053,384,059,025
5. Step 5: Solve for x
   x = 1,053,384,059,025/699,540
6. Step 6: Final answer
   x = 1,505,823.91