Finding the Third Proportional to 84,077.25 and 140,128.50

Step by Step Solution

1. Step 1: Write the proportion equation
   84,077.25 : 140,128.50 = 140,128.50 : x
2. Step 2: Convert to fraction form
   84,077.25/140,128.50 = 140,128.50/x
3. Step 3: Cross multiply
   84,077.25x = 140,128.50 × 140,128.50
4. Step 4: Simplify right side
   84,077.25x = 19,635,996,512.25
5. Step 5: Solve for x
   x = 19,635,996,512.25/84,077.25
6. Step 6: Final answer
   x = 233,547.08