Finding the Third Proportional to 747,874 and 1,621,940

Step by Step Solution

1. Step 1: Write the proportion equation
   747,874 : 1,621,940 = 1,621,940 : x
2. Step 2: Convert to fraction form
   747,874/1,621,940 = 1,621,940/x
3. Step 3: Cross multiply
   747,874x = 1,621,940 × 1,621,940
4. Step 4: Simplify right side
   747,874x = 2,630,689,363,600
5. Step 5: Solve for x
   x = 2,630,689,363,600/747,874
6. Step 6: Final answer
   x = 3,517,556.92