Finding the Third Proportional to 19,778,111.50 and 41,072,057

Step by Step Solution

1. Step 1: Write the proportion equation
   19,778,111.50 : 41,072,057 = 41,072,057 : x
2. Step 2: Convert to fraction form
   19,778,111.50/41,072,057 = 41,072,057/x
3. Step 3: Cross multiply
   19,778,111.50x = 41,072,057 × 41,072,057
4. Step 4: Simplify right side
   19,778,111.50x = 1,686,913,866,211,249
5. Step 5: Solve for x
   x = 1,686,913,866,211,249/19,778,111.50
6. Step 6: Final answer
   x = 85,291,958.55