Finding the Third Proportional to 611,122 and 1,315,860

Step by Step Solution

1. Step 1: Write the proportion equation
   611,122 : 1,315,860 = 1,315,860 : x
2. Step 2: Convert to fraction form
   611,122/1,315,860 = 1,315,860/x
3. Step 3: Cross multiply
   611,122x = 1,315,860 × 1,315,860
4. Step 4: Simplify right side
   611,122x = 1,731,487,539,600
5. Step 5: Solve for x
   x = 1,731,487,539,600/611,122
6. Step 6: Final answer
   x = 2,833,292.76