Finding the Third Proportional to 81,725.63 and 123,810.75

Step by Step Solution

1. Step 1: Write the proportion equation
   81,725.63 : 123,810.75 = 123,810.75 : x
2. Step 2: Convert to fraction form
   81,725.63/123,810.75 = 123,810.75/x
3. Step 3: Cross multiply
   81,725.63x = 123,810.75 × 123,810.75
4. Step 4: Simplify right side
   81,725.63x = 15,329,101,815.56
5. Step 5: Solve for x
   x = 15,329,101,815.56/81,725.63
6. Step 6: Final answer
   x = 187,567.88