Finding the Third Proportional to 677,748 and 1,411,680

Step by Step Solution

1. Step 1: Write the proportion equation
   677,748 : 1,411,680 = 1,411,680 : x
2. Step 2: Convert to fraction form
   677,748/1,411,680 = 1,411,680/x
3. Step 3: Cross multiply
   677,748x = 1,411,680 × 1,411,680
4. Step 4: Simplify right side
   677,748x = 1,992,840,422,400
5. Step 5: Solve for x
   x = 1,992,840,422,400/677,748
6. Step 6: Final answer
   x = 2,940,385.55