Finding the Third Proportional to 717,915 and 1,111,491

Step by Step Solution

1. Step 1: Write the proportion equation
   717,915 : 1,111,491 = 1,111,491 : x
2. Step 2: Convert to fraction form
   717,915/1,111,491 = 1,111,491/x
3. Step 3: Cross multiply
   717,915x = 1,111,491 × 1,111,491
4. Step 4: Simplify right side
   717,915x = 1,235,412,243,081
5. Step 5: Solve for x
   x = 1,235,412,243,081/717,915
6. Step 6: Final answer
   x = 1,720,833.58