Finding the Third Proportional to 429,172 and 923,792

Step by Step Solution

1. Step 1: Write the proportion equation
   429,172 : 923,792 = 923,792 : x
2. Step 2: Convert to fraction form
   429,172/923,792 = 923,792/x
3. Step 3: Cross multiply
   429,172x = 923,792 × 923,792
4. Step 4: Simplify right side
   429,172x = 853,391,659,264
5. Step 5: Solve for x
   x = 853,391,659,264/429,172
6. Step 6: Final answer
   x = 1,988,460.71