Finding the Third Proportional to 747,656 and 1,621,510

Step by Step Solution

1. Step 1: Write the proportion equation
   747,656 : 1,621,510 = 1,621,510 : x
2. Step 2: Convert to fraction form
   747,656/1,621,510 = 1,621,510/x
3. Step 3: Cross multiply
   747,656x = 1,621,510 × 1,621,510
4. Step 4: Simplify right side
   747,656x = 2,629,294,680,100
5. Step 5: Solve for x
   x = 2,629,294,680,100/747,656
6. Step 6: Final answer
   x = 3,516,717.15