Finding the Third Proportional to 1,287,792 and 2,829,312

Step by Step Solution

1. Step 1: Write the proportion equation
   1,287,792 : 2,829,312 = 2,829,312 : x
2. Step 2: Convert to fraction form
   1,287,792/2,829,312 = 2,829,312/x
3. Step 3: Cross multiply
   1,287,792x = 2,829,312 × 2,829,312
4. Step 4: Simplify right side
   1,287,792x = 8,005,006,393,344
5. Step 5: Solve for x
   x = 8,005,006,393,344/1,287,792
6. Step 6: Final answer
   x = 6,216,070.91