Finding the Third Proportional to 148,695,944 and 315,113,872

Step by Step Solution

1. Step 1: Write the proportion equation
   148,695,944 : 315,113,872 = 315,113,872 : x
2. Step 2: Convert to fraction form
   148,695,944/315,113,872 = 315,113,872/x
3. Step 3: Cross multiply
   148,695,944x = 315,113,872 × 315,113,872
4. Step 4: Simplify right side
   148,695,944x = 99,296,752,326,832,384
5. Step 5: Solve for x
   x = 99,296,752,326,832,384/148,695,944
6. Step 6: Final answer
   x = 667,783,865.89