Finding the Third Proportional to 2,605,857.50 and 3,929,292

Step by Step Solution

1. Step 1: Write the proportion equation
   2,605,857.50 : 3,929,292 = 3,929,292 : x
2. Step 2: Convert to fraction form
   2,605,857.50/3,929,292 = 3,929,292/x
3. Step 3: Cross multiply
   2,605,857.50x = 3,929,292 × 3,929,292
4. Step 4: Simplify right side
   2,605,857.50x = 15,439,335,621,264
5. Step 5: Solve for x
   x = 15,439,335,621,264/2,605,857.50
6. Step 6: Final answer
   x = 5,924,857.99