Finding the Third Proportional to 762,616 and 1,643,430

Step by Step Solution

1. Step 1: Write the proportion equation
   762,616 : 1,643,430 = 1,643,430 : x
2. Step 2: Convert to fraction form
   762,616/1,643,430 = 1,643,430/x
3. Step 3: Cross multiply
   762,616x = 1,643,430 × 1,643,430
4. Step 4: Simplify right side
   762,616x = 2,700,862,164,900
5. Step 5: Solve for x
   x = 2,700,862,164,900/762,616
6. Step 6: Final answer
   x = 3,541,575.53