Finding the Third Proportional to 56,083.50 and 86,203.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,083.50 : 86,203.50 = 86,203.50 : x
2. Step 2: Convert to fraction form
   56,083.50/86,203.50 = 86,203.50/x
3. Step 3: Cross multiply
   56,083.50x = 86,203.50 × 86,203.50
4. Step 4: Simplify right side
   56,083.50x = 7,431,043,412.25
5. Step 5: Solve for x
   x = 7,431,043,412.25/56,083.50
6. Step 6: Final answer
   x = 132,499.64