Finding the Third Proportional to 1,640,861 and 3,544,624

Step by Step Solution

1. Step 1: Write the proportion equation
   1,640,861 : 3,544,624 = 3,544,624 : x
2. Step 2: Convert to fraction form
   1,640,861/3,544,624 = 3,544,624/x
3. Step 3: Cross multiply
   1,640,861x = 3,544,624 × 3,544,624
4. Step 4: Simplify right side
   1,640,861x = 12,564,359,301,376
5. Step 5: Solve for x
   x = 12,564,359,301,376/1,640,861
6. Step 6: Final answer
   x = 7,657,174.68