Finding the Third Proportional to 19,211,851.50 and 42,161,478

Step by Step Solution

1. Step 1: Write the proportion equation
   19,211,851.50 : 42,161,478 = 42,161,478 : x
2. Step 2: Convert to fraction form
   19,211,851.50/42,161,478 = 42,161,478/x
3. Step 3: Cross multiply
   19,211,851.50x = 42,161,478 × 42,161,478
4. Step 4: Simplify right side
   19,211,851.50x = 1,777,590,227,144,484
5. Step 5: Solve for x
   x = 1,777,590,227,144,484/19,211,851.50
6. Step 6: Final answer
   x = 92,525,711.39