Finding the Third Proportional to 788,558 and 1,115,792

Step by Step Solution

1. Step 1: Write the proportion equation
   788,558 : 1,115,792 = 1,115,792 : x
2. Step 2: Convert to fraction form
   788,558/1,115,792 = 1,115,792/x
3. Step 3: Cross multiply
   788,558x = 1,115,792 × 1,115,792
4. Step 4: Simplify right side
   788,558x = 1,244,991,787,264
5. Step 5: Solve for x
   x = 1,244,991,787,264/788,558
6. Step 6: Final answer
   x = 1,578,820.82