Finding the Third Proportional to 81,928.50 and 123,470.25

Step by Step Solution

1. Step 1: Write the proportion equation
   81,928.50 : 123,470.25 = 123,470.25 : x
2. Step 2: Convert to fraction form
   81,928.50/123,470.25 = 123,470.25/x
3. Step 3: Cross multiply
   81,928.50x = 123,470.25 × 123,470.25
4. Step 4: Simplify right side
   81,928.50x = 15,244,902,635.06
5. Step 5: Solve for x
   x = 15,244,902,635.06/81,928.50
6. Step 6: Final answer
   x = 186,075.70