Finding the Third Proportional to 717,899.25 and 1,111,469.25

Step by Step Solution

1. Step 1: Write the proportion equation
   717,899.25 : 1,111,469.25 = 1,111,469.25 : x
2. Step 2: Convert to fraction form
   717,899.25/1,111,469.25 = 1,111,469.25/x
3. Step 3: Cross multiply
   717,899.25x = 1,111,469.25 × 1,111,469.25
4. Step 4: Simplify right side
   717,899.25x = 1,235,363,893,695.56
5. Step 5: Solve for x
   x = 1,235,363,893,695.56/717,899.25
6. Step 6: Final answer
   x = 1,720,803.99