Finding the Third Proportional to 42,642,171 and 65,503,593

Step by Step Solution

1. Step 1: Write the proportion equation
   42,642,171 : 65,503,593 = 65,503,593 : x
2. Step 2: Convert to fraction form
   42,642,171/65,503,593 = 65,503,593/x
3. Step 3: Cross multiply
   42,642,171x = 65,503,593 × 65,503,593
4. Step 4: Simplify right side
   42,642,171x = 4,290,720,695,909,649
5. Step 5: Solve for x
   x = 4,290,720,695,909,649/42,642,171
6. Step 6: Final answer
   x = 100,621,534.86