Finding the Third Proportional to 517,620 and 1,113,912

Step by Step Solution

1. Step 1: Write the proportion equation
   517,620 : 1,113,912 = 1,113,912 : x
2. Step 2: Convert to fraction form
   517,620/1,113,912 = 1,113,912/x
3. Step 3: Cross multiply
   517,620x = 1,113,912 × 1,113,912
4. Step 4: Simplify right side
   517,620x = 1,240,799,943,744
5. Step 5: Solve for x
   x = 1,240,799,943,744/517,620
6. Step 6: Final answer
   x = 2,397,125.20