Finding the Third Proportional to 81,807.47 and 111,947.06

Step by Step Solution

1. Step 1: Write the proportion equation
   81,807.47 : 111,947.06 = 111,947.06 : x
2. Step 2: Convert to fraction form
   81,807.47/111,947.06 = 111,947.06/x
3. Step 3: Cross multiply
   81,807.47x = 111,947.06 × 111,947.06
4. Step 4: Simplify right side
   81,807.47x = 12,532,144,802.38
5. Step 5: Solve for x
   x = 12,532,144,802.38/81,807.47
6. Step 6: Final answer
   x = 153,190.72