Finding the Third Proportional to 21,322,676 and 31,184,320

Step by Step Solution

1. Step 1: Write the proportion equation
   21,322,676 : 31,184,320 = 31,184,320 : x
2. Step 2: Convert to fraction form
   21,322,676/31,184,320 = 31,184,320/x
3. Step 3: Cross multiply
   21,322,676x = 31,184,320 × 31,184,320
4. Step 4: Simplify right side
   21,322,676x = 972,461,813,862,400
5. Step 5: Solve for x
   x = 972,461,813,862,400/21,322,676
6. Step 6: Final answer
   x = 45,606,931.04