Finding the Third Proportional to 21,148,416 and 31,862,640

Step by Step Solution

1. Step 1: Write the proportion equation
   21,148,416 : 31,862,640 = 31,862,640 : x
2. Step 2: Convert to fraction form
   21,148,416/31,862,640 = 31,862,640/x
3. Step 3: Cross multiply
   21,148,416x = 31,862,640 × 31,862,640
4. Step 4: Simplify right side
   21,148,416x = 1,015,227,827,769,600
5. Step 5: Solve for x
   x = 1,015,227,827,769,600/21,148,416
6. Step 6: Final answer
   x = 48,004,911.00