Finding the Third Proportional to 100,606.88 and 140,998.50

Step by Step Solution

1. Step 1: Write the proportion equation
   100,606.88 : 140,998.50 = 140,998.50 : x
2. Step 2: Convert to fraction form
   100,606.88/140,998.50 = 140,998.50/x
3. Step 3: Cross multiply
   100,606.88x = 140,998.50 × 140,998.50
4. Step 4: Simplify right side
   100,606.88x = 19,880,577,002.25
5. Step 5: Solve for x
   x = 19,880,577,002.25/100,606.88
6. Step 6: Final answer
   x = 197,606.55