Finding the Third Proportional to 42,872,628 and 91,275,648

Step by Step Solution

1. Step 1: Write the proportion equation
   42,872,628 : 91,275,648 = 91,275,648 : x
2. Step 2: Convert to fraction form
   42,872,628/91,275,648 = 91,275,648/x
3. Step 3: Cross multiply
   42,872,628x = 91,275,648 × 91,275,648
4. Step 4: Simplify right side
   42,872,628x = 8,331,243,917,819,904
5. Step 5: Solve for x
   x = 8,331,243,917,819,904/42,872,628
6. Step 6: Final answer
   x = 194,325,477.73