Finding the Third Proportional to 872,479.25 and 1,309,642.25

Step by Step Solution

1. Step 1: Write the proportion equation
   872,479.25 : 1,309,642.25 = 1,309,642.25 : x
2. Step 2: Convert to fraction form
   872,479.25/1,309,642.25 = 1,309,642.25/x
3. Step 3: Cross multiply
   872,479.25x = 1,309,642.25 × 1,309,642.25
4. Step 4: Simplify right side
   872,479.25x = 1,715,162,822,985.06
5. Step 5: Solve for x
   x = 1,715,162,822,985.06/872,479.25
6. Step 6: Final answer
   x = 1,965,849.41