Finding the Third Proportional to 26,399,612 and 42,007,386

Step by Step Solution

1. Step 1: Write the proportion equation
   26,399,612 : 42,007,386 = 42,007,386 : x
2. Step 2: Convert to fraction form
   26,399,612/42,007,386 = 42,007,386/x
3. Step 3: Cross multiply
   26,399,612x = 42,007,386 × 42,007,386
4. Step 4: Simplify right side
   26,399,612x = 1,764,620,478,552,996
5. Step 5: Solve for x
   x = 1,764,620,478,552,996/26,399,612
6. Step 6: Final answer
   x = 66,842,667.18