Finding the Third Proportional to 10,861,076 and 21,447,976

Step by Step Solution

1. Step 1: Write the proportion equation
   10,861,076 : 21,447,976 = 21,447,976 : x
2. Step 2: Convert to fraction form
   10,861,076/21,447,976 = 21,447,976/x
3. Step 3: Cross multiply
   10,861,076x = 21,447,976 × 21,447,976
4. Step 4: Simplify right side
   10,861,076x = 460,015,674,496,576
5. Step 5: Solve for x
   x = 460,015,674,496,576/10,861,076
6. Step 6: Final answer
   x = 42,354,521.27