Finding the Third Proportional to 42,872,618 and 91,275,628

Step by Step Solution

1. Step 1: Write the proportion equation
   42,872,618 : 91,275,628 = 91,275,628 : x
2. Step 2: Convert to fraction form
   42,872,618/91,275,628 = 91,275,628/x
3. Step 3: Cross multiply
   42,872,618x = 91,275,628 × 91,275,628
4. Step 4: Simplify right side
   42,872,618x = 8,331,240,266,794,384
5. Step 5: Solve for x
   x = 8,331,240,266,794,384/42,872,618
6. Step 6: Final answer
   x = 194,325,437.90