Finding the Third Proportional to 563,769 and 873,517.50

Step by Step Solution

1. Step 1: Write the proportion equation
   563,769 : 873,517.50 = 873,517.50 : x
2. Step 2: Convert to fraction form
   563,769/873,517.50 = 873,517.50/x
3. Step 3: Cross multiply
   563,769x = 873,517.50 × 873,517.50
4. Step 4: Simplify right side
   563,769x = 763,032,822,806.25
5. Step 5: Solve for x
   x = 763,032,822,806.25/563,769
6. Step 6: Final answer
   x = 1,353,449.41