Finding the Third Proportional to 1,681,128 and 3,598,434

Step by Step Solution

1. Step 1: Write the proportion equation
   1,681,128 : 3,598,434 = 3,598,434 : x
2. Step 2: Convert to fraction form
   1,681,128/3,598,434 = 3,598,434/x
3. Step 3: Cross multiply
   1,681,128x = 3,598,434 × 3,598,434
4. Step 4: Simplify right side
   1,681,128x = 12,948,727,252,356
5. Step 5: Solve for x
   x = 12,948,727,252,356/1,681,128
6. Step 6: Final answer
   x = 7,702,404.13