Finding the Third Proportional to 110,858.50 and 169,055.50

Step by Step Solution

1. Step 1: Write the proportion equation
   110,858.50 : 169,055.50 = 169,055.50 : x
2. Step 2: Convert to fraction form
   110,858.50/169,055.50 = 169,055.50/x
3. Step 3: Cross multiply
   110,858.50x = 169,055.50 × 169,055.50
4. Step 4: Simplify right side
   110,858.50x = 28,579,762,080.25
5. Step 5: Solve for x
   x = 28,579,762,080.25/110,858.50
6. Step 6: Final answer
   x = 257,803.98