Finding the Third Proportional to 641,988 and 1,355,602

Step by Step Solution

1. Step 1: Write the proportion equation
   641,988 : 1,355,602 = 1,355,602 : x
2. Step 2: Convert to fraction form
   641,988/1,355,602 = 1,355,602/x
3. Step 3: Cross multiply
   641,988x = 1,355,602 × 1,355,602
4. Step 4: Simplify right side
   641,988x = 1,837,656,782,404
5. Step 5: Solve for x
   x = 1,837,656,782,404/641,988
6. Step 6: Final answer
   x = 2,862,447.25