Finding the Third Proportional to 77,080.50 and 168,131.25

Step by Step Solution

1. Step 1: Write the proportion equation
   77,080.50 : 168,131.25 = 168,131.25 : x
2. Step 2: Convert to fraction form
   77,080.50/168,131.25 = 168,131.25/x
3. Step 3: Cross multiply
   77,080.50x = 168,131.25 × 168,131.25
4. Step 4: Simplify right side
   77,080.50x = 28,268,117,226.56
5. Step 5: Solve for x
   x = 28,268,117,226.56/77,080.50
6. Step 6: Final answer
   x = 366,735.00