Finding the Third Proportional to 4,665,021 and 9,702,468

Step by Step Solution

1. Step 1: Write the proportion equation
   4,665,021 : 9,702,468 = 9,702,468 : x
2. Step 2: Convert to fraction form
   4,665,021/9,702,468 = 9,702,468/x
3. Step 3: Cross multiply
   4,665,021x = 9,702,468 × 9,702,468
4. Step 4: Simplify right side
   4,665,021x = 94,137,885,291,024
5. Step 5: Solve for x
   x = 94,137,885,291,024/4,665,021
6. Step 6: Final answer
   x = 20,179,520.15