Finding the Third Proportional to 718,196.25 and 1,085,860.50

Step by Step Solution

1. Step 1: Write the proportion equation
   718,196.25 : 1,085,860.50 = 1,085,860.50 : x
2. Step 2: Convert to fraction form
   718,196.25/1,085,860.50 = 1,085,860.50/x
3. Step 3: Cross multiply
   718,196.25x = 1,085,860.50 × 1,085,860.50
4. Step 4: Simplify right side
   718,196.25x = 1,179,093,025,460.25
5. Step 5: Solve for x
   x = 1,179,093,025,460.25/718,196.25
6. Step 6: Final answer
   x = 1,641,742.11