Finding the Third Proportional to 787,816.50 and 1,216,662

Step by Step Solution

1. Step 1: Write the proportion equation
   787,816.50 : 1,216,662 = 1,216,662 : x
2. Step 2: Convert to fraction form
   787,816.50/1,216,662 = 1,216,662/x
3. Step 3: Cross multiply
   787,816.50x = 1,216,662 × 1,216,662
4. Step 4: Simplify right side
   787,816.50x = 1,480,266,422,244
5. Step 5: Solve for x
   x = 1,480,266,422,244/787,816.50
6. Step 6: Final answer
   x = 1,878,948.24