Finding the Third Proportional to 647,539.31 and 1,423,564.88

Step by Step Solution

1. Step 1: Write the proportion equation
   647,539.31 : 1,423,564.88 = 1,423,564.88 : x
2. Step 2: Convert to fraction form
   647,539.31/1,423,564.88 = 1,423,564.88/x
3. Step 3: Cross multiply
   647,539.31x = 1,423,564.88 × 1,423,564.88
4. Step 4: Simplify right side
   647,539.31x = 2,026,536,953,333.77
5. Step 5: Solve for x
   x = 2,026,536,953,333.77/647,539.31
6. Step 6: Final answer
   x = 3,129,596.79