Finding the Third Proportional to 762,624 and 1,643,445

Step by Step Solution

1. Step 1: Write the proportion equation
   762,624 : 1,643,445 = 1,643,445 : x
2. Step 2: Convert to fraction form
   762,624/1,643,445 = 1,643,445/x
3. Step 3: Cross multiply
   762,624x = 1,643,445 × 1,643,445
4. Step 4: Simplify right side
   762,624x = 2,700,911,468,025
5. Step 5: Solve for x
   x = 2,700,911,468,025/762,624
6. Step 6: Final answer
   x = 3,541,603.03