Finding the Third Proportional to 81,445.50 and 173,643.75

Step by Step Solution

1. Step 1: Write the proportion equation
   81,445.50 : 173,643.75 = 173,643.75 : x
2. Step 2: Convert to fraction form
   81,445.50/173,643.75 = 173,643.75/x
3. Step 3: Cross multiply
   81,445.50x = 173,643.75 × 173,643.75
4. Step 4: Simplify right side
   81,445.50x = 30,152,151,914.06
5. Step 5: Solve for x
   x = 30,152,151,914.06/81,445.50
6. Step 6: Final answer
   x = 370,212.62