Finding the Third Proportional to 100,707.50 and 141,172

Step by Step Solution

1. Step 1: Write the proportion equation
   100,707.50 : 141,172 = 141,172 : x
2. Step 2: Convert to fraction form
   100,707.50/141,172 = 141,172/x
3. Step 3: Cross multiply
   100,707.50x = 141,172 × 141,172
4. Step 4: Simplify right side
   100,707.50x = 19,929,533,584
5. Step 5: Solve for x
   x = 19,929,533,584/100,707.50
6. Step 6: Final answer
   x = 197,895.23