Finding the Third Proportional to 8,728,493.50 and 18,967,816.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,728,493.50 : 18,967,816.50 = 18,967,816.50 : x
2. Step 2: Convert to fraction form
   8,728,493.50/18,967,816.50 = 18,967,816.50/x
3. Step 3: Cross multiply
   8,728,493.50x = 18,967,816.50 × 18,967,816.50
4. Step 4: Simplify right side
   8,728,493.50x = 359,778,062,777,672.25
5. Step 5: Solve for x
   x = 359,778,062,777,672.25/8,728,493.50
6. Step 6: Final answer
   x = 41,218,804.00