Finding the Third Proportional to 18,029,430 and 42,517,962

Step by Step Solution

1. Step 1: Write the proportion equation
   18,029,430 : 42,517,962 = 42,517,962 : x
2. Step 2: Convert to fraction form
   18,029,430/42,517,962 = 42,517,962/x
3. Step 3: Cross multiply
   18,029,430x = 42,517,962 × 42,517,962
4. Step 4: Simplify right side
   18,029,430x = 1,807,777,092,633,444
5. Step 5: Solve for x
   x = 1,807,777,092,633,444/18,029,430
6. Step 6: Final answer
   x = 100,268,122.32