Finding the Third Proportional to 718,644 and 1,564,784

Step by Step Solution

1. Step 1: Write the proportion equation
   718,644 : 1,564,784 = 1,564,784 : x
2. Step 2: Convert to fraction form
   718,644/1,564,784 = 1,564,784/x
3. Step 3: Cross multiply
   718,644x = 1,564,784 × 1,564,784
4. Step 4: Simplify right side
   718,644x = 2,448,548,966,656
5. Step 5: Solve for x
   x = 2,448,548,966,656/718,644
6. Step 6: Final answer
   x = 3,407,179.31