Finding the Third Proportional to 4,039,443 and 8,851,428

Step by Step Solution

1. Step 1: Write the proportion equation
   4,039,443 : 8,851,428 = 8,851,428 : x
2. Step 2: Convert to fraction form
   4,039,443/8,851,428 = 8,851,428/x
3. Step 3: Cross multiply
   4,039,443x = 8,851,428 × 8,851,428
4. Step 4: Simplify right side
   4,039,443x = 78,347,777,639,184
5. Step 5: Solve for x
   x = 78,347,777,639,184/4,039,443
6. Step 6: Final answer
   x = 19,395,688.38