Finding the Third Proportional to 42,392,769 and 67,237,686

Step by Step Solution

1. Step 1: Write the proportion equation
   42,392,769 : 67,237,686 = 67,237,686 : x
2. Step 2: Convert to fraction form
   42,392,769/67,237,686 = 67,237,686/x
3. Step 3: Cross multiply
   42,392,769x = 67,237,686 × 67,237,686
4. Step 4: Simplify right side
   42,392,769x = 4,520,906,418,634,596
5. Step 5: Solve for x
   x = 4,520,906,418,634,596/42,392,769
6. Step 6: Final answer
   x = 106,643,338.60