Finding the Third Proportional to 92,243.25 and 139,009.50

Step by Step Solution

1. Step 1: Write the proportion equation
   92,243.25 : 139,009.50 = 139,009.50 : x
2. Step 2: Convert to fraction form
   92,243.25/139,009.50 = 139,009.50/x
3. Step 3: Cross multiply
   92,243.25x = 139,009.50 × 139,009.50
4. Step 4: Simplify right side
   92,243.25x = 19,323,641,090.25
5. Step 5: Solve for x
   x = 19,323,641,090.25/92,243.25
6. Step 6: Final answer
   x = 209,485.69