Finding the Third Proportional to 772,078.50 and 1,113,817.50

Step by Step Solution

1. Step 1: Write the proportion equation
   772,078.50 : 1,113,817.50 = 1,113,817.50 : x
2. Step 2: Convert to fraction form
   772,078.50/1,113,817.50 = 1,113,817.50/x
3. Step 3: Cross multiply
   772,078.50x = 1,113,817.50 × 1,113,817.50
4. Step 4: Simplify right side
   772,078.50x = 1,240,589,423,306.25
5. Step 5: Solve for x
   x = 1,240,589,423,306.25/772,078.50
6. Step 6: Final answer
   x = 1,606,817.73