Finding the Third Proportional to 423,691,872 and 912,308,076

Step by Step Solution

1. Step 1: Write the proportion equation
   423,691,872 : 912,308,076 = 912,308,076 : x
2. Step 2: Convert to fraction form
   423,691,872/912,308,076 = 912,308,076/x
3. Step 3: Cross multiply
   423,691,872x = 912,308,076 × 912,308,076
4. Step 4: Simplify right side
   423,691,872x = 832,306,025,534,821,760
5. Step 5: Solve for x
   x = 832,306,025,534,821,760/423,691,872
6. Step 6: Final answer
   x = 1,964,413,481.92