Finding the Third Proportional to 717,508 and 1,561,134

Step by Step Solution

1. Step 1: Write the proportion equation
   717,508 : 1,561,134 = 1,561,134 : x
2. Step 2: Convert to fraction form
   717,508/1,561,134 = 1,561,134/x
3. Step 3: Cross multiply
   717,508x = 1,561,134 × 1,561,134
4. Step 4: Simplify right side
   717,508x = 2,437,139,365,956
5. Step 5: Solve for x
   x = 2,437,139,365,956/717,508
6. Step 6: Final answer
   x = 3,396,672.05