Finding the Third Proportional to 1,521,712 and 3,598,680

Step by Step Solution

1. Step 1: Write the proportion equation
   1,521,712 : 3,598,680 = 3,598,680 : x
2. Step 2: Convert to fraction form
   1,521,712/3,598,680 = 3,598,680/x
3. Step 3: Cross multiply
   1,521,712x = 3,598,680 × 3,598,680
4. Step 4: Simplify right side
   1,521,712x = 12,950,497,742,400
5. Step 5: Solve for x
   x = 12,950,497,742,400/1,521,712
6. Step 6: Final answer
   x = 8,510,478.82