Finding the Third Proportional to 19,778,403 and 41,072,670

Step by Step Solution

1. Step 1: Write the proportion equation
   19,778,403 : 41,072,670 = 41,072,670 : x
2. Step 2: Convert to fraction form
   19,778,403/41,072,670 = 41,072,670/x
3. Step 3: Cross multiply
   19,778,403x = 41,072,670 × 41,072,670
4. Step 4: Simplify right side
   19,778,403x = 1,686,964,220,928,900
5. Step 5: Solve for x
   x = 1,686,964,220,928,900/19,778,403
6. Step 6: Final answer
   x = 85,293,247.43