Finding the Third Proportional to 615,366 and 1,329,147

Step by Step Solution

1. Step 1: Write the proportion equation
   615,366 : 1,329,147 = 1,329,147 : x
2. Step 2: Convert to fraction form
   615,366/1,329,147 = 1,329,147/x
3. Step 3: Cross multiply
   615,366x = 1,329,147 × 1,329,147
4. Step 4: Simplify right side
   615,366x = 1,766,631,747,609
5. Step 5: Solve for x
   x = 1,766,631,747,609/615,366
6. Step 6: Final answer
   x = 2,870,863.43