Finding the Third Proportional to 842,208.50 and 1,810,517.50

Step by Step Solution

1. Step 1: Write the proportion equation
   842,208.50 : 1,810,517.50 = 1,810,517.50 : x
2. Step 2: Convert to fraction form
   842,208.50/1,810,517.50 = 1,810,517.50/x
3. Step 3: Cross multiply
   842,208.50x = 1,810,517.50 × 1,810,517.50
4. Step 4: Simplify right side
   842,208.50x = 3,277,973,617,806.25
5. Step 5: Solve for x
   x = 3,277,973,617,806.25/842,208.50
6. Step 6: Final answer
   x = 3,892,116.52