Finding the Third Proportional to 420,696 and 923,040

Step by Step Solution

1. Step 1: Write the proportion equation
   420,696 : 923,040 = 923,040 : x
2. Step 2: Convert to fraction form
   420,696/923,040 = 923,040/x
3. Step 3: Cross multiply
   420,696x = 923,040 × 923,040
4. Step 4: Simplify right side
   420,696x = 852,002,841,600
5. Step 5: Solve for x
   x = 852,002,841,600/420,696
6. Step 6: Final answer
   x = 2,025,222.11