Finding the Third Proportional to 1,620,315 and 3,489,948

Step by Step Solution

1. Step 1: Write the proportion equation
   1,620,315 : 3,489,948 = 3,489,948 : x
2. Step 2: Convert to fraction form
   1,620,315/3,489,948 = 3,489,948/x
3. Step 3: Cross multiply
   1,620,315x = 3,489,948 × 3,489,948
4. Step 4: Simplify right side
   1,620,315x = 12,179,737,042,704
5. Step 5: Solve for x
   x = 12,179,737,042,704/1,620,315
6. Step 6: Final answer
   x = 7,516,894.58