Finding the Third Proportional to 59,391 and 123,679.13

Step by Step Solution

1. Step 1: Write the proportion equation
   59,391 : 123,679.13 = 123,679.13 : x
2. Step 2: Convert to fraction form
   59,391/123,679.13 = 123,679.13/x
3. Step 3: Cross multiply
   59,391x = 123,679.13 × 123,679.13
4. Step 4: Simplify right side
   59,391x = 15,296,525,960.77
5. Step 5: Solve for x
   x = 15,296,525,960.77/59,391
6. Step 6: Final answer
   x = 257,556.30