Finding the Third Proportional to 107,312.50 and 145,744.50

Step by Step Solution

1. Step 1: Write the proportion equation
   107,312.50 : 145,744.50 = 145,744.50 : x
2. Step 2: Convert to fraction form
   107,312.50/145,744.50 = 145,744.50/x
3. Step 3: Cross multiply
   107,312.50x = 145,744.50 × 145,744.50
4. Step 4: Simplify right side
   107,312.50x = 21,241,459,280.25
5. Step 5: Solve for x
   x = 21,241,459,280.25/107,312.50
6. Step 6: Final answer
   x = 197,940.21