Finding the Third Proportional to 678,300,787.31 and 1,469,287,822.69

Step by Step Solution

1. Step 1: Write the proportion equation
   678,300,787.31 : 1,469,287,822.69 = 1,469,287,822.69 : x
2. Step 2: Convert to fraction form
   678,300,787.31/1,469,287,822.69 = 1,469,287,822.69/x
3. Step 3: Cross multiply
   678,300,787.31x = 1,469,287,822.69 × 1,469,287,822.69
4. Step 4: Simplify right side
   678,300,787.31x = 2,158,806,705,897,774,336
5. Step 5: Solve for x
   x = 2,158,806,705,897,774,336/678,300,787.31
6. Step 6: Final answer
   x = 3,182,668,730.86