Finding the Third Proportional to 1,539,617 and 2,217,750

Step by Step Solution

1. Step 1: Write the proportion equation
   1,539,617 : 2,217,750 = 2,217,750 : x
2. Step 2: Convert to fraction form
   1,539,617/2,217,750 = 2,217,750/x
3. Step 3: Cross multiply
   1,539,617x = 2,217,750 × 2,217,750
4. Step 4: Simplify right side
   1,539,617x = 4,918,415,062,500
5. Step 5: Solve for x
   x = 4,918,415,062,500/1,539,617
6. Step 6: Final answer
   x = 3,194,570.51