Finding the Third Proportional to 643,537 and 873,016.50

Step by Step Solution

1. Step 1: Write the proportion equation
   643,537 : 873,016.50 = 873,016.50 : x
2. Step 2: Convert to fraction form
   643,537/873,016.50 = 873,016.50/x
3. Step 3: Cross multiply
   643,537x = 873,016.50 × 873,016.50
4. Step 4: Simplify right side
   643,537x = 762,157,809,272.25
5. Step 5: Solve for x
   x = 762,157,809,272.25/643,537
6. Step 6: Final answer
   x = 1,184,326.32