Finding the Third Proportional to 107,315.50 and 145,749

Step by Step Solution

1. Step 1: Write the proportion equation
   107,315.50 : 145,749 = 145,749 : x
2. Step 2: Convert to fraction form
   107,315.50/145,749 = 145,749/x
3. Step 3: Cross multiply
   107,315.50x = 145,749 × 145,749
4. Step 4: Simplify right side
   107,315.50x = 21,242,771,001
5. Step 5: Solve for x
   x = 21,242,771,001/107,315.50
6. Step 6: Final answer
   x = 197,946.90