Finding the Third Proportional to 2,709,572 and 3,989,511

Step by Step Solution

1. Step 1: Write the proportion equation
   2,709,572 : 3,989,511 = 3,989,511 : x
2. Step 2: Convert to fraction form
   2,709,572/3,989,511 = 3,989,511/x
3. Step 3: Cross multiply
   2,709,572x = 3,989,511 × 3,989,511
4. Step 4: Simplify right side
   2,709,572x = 15,916,198,019,121
5. Step 5: Solve for x
   x = 15,916,198,019,121/2,709,572
6. Step 6: Final answer
   x = 5,874,063.51