Finding the Third Proportional to 607,142 and 905,792

Step by Step Solution

1. Step 1: Write the proportion equation
   607,142 : 905,792 = 905,792 : x
2. Step 2: Convert to fraction form
   607,142/905,792 = 905,792/x
3. Step 3: Cross multiply
   607,142x = 905,792 × 905,792
4. Step 4: Simplify right side
   607,142x = 820,459,147,264
5. Step 5: Solve for x
   x = 820,459,147,264/607,142
6. Step 6: Final answer
   x = 1,351,346.39