Finding the Third Proportional to 749,631 and 1,639,068

Step by Step Solution

1. Step 1: Write the proportion equation
   749,631 : 1,639,068 = 1,639,068 : x
2. Step 2: Convert to fraction form
   749,631/1,639,068 = 1,639,068/x
3. Step 3: Cross multiply
   749,631x = 1,639,068 × 1,639,068
4. Step 4: Simplify right side
   749,631x = 2,686,543,908,624
5. Step 5: Solve for x
   x = 2,686,543,908,624/749,631
6. Step 6: Final answer
   x = 3,583,821.79