Finding the Third Proportional to 4,061,707 and 8,920,615

Step by Step Solution

1. Step 1: Write the proportion equation
   4,061,707 : 8,920,615 = 8,920,615 : x
2. Step 2: Convert to fraction form
   4,061,707/8,920,615 = 8,920,615/x
3. Step 3: Cross multiply
   4,061,707x = 8,920,615 × 8,920,615
4. Step 4: Simplify right side
   4,061,707x = 79,577,371,978,225
5. Step 5: Solve for x
   x = 79,577,371,978,225/4,061,707
6. Step 6: Final answer
   x = 19,592,100.56