Finding the Third Proportional to 72,131.50 and 100,887

Step by Step Solution

1. Step 1: Write the proportion equation
   72,131.50 : 100,887 = 100,887 : x
2. Step 2: Convert to fraction form
   72,131.50/100,887 = 100,887/x
3. Step 3: Cross multiply
   72,131.50x = 100,887 × 100,887
4. Step 4: Simplify right side
   72,131.50x = 10,178,186,769
5. Step 5: Solve for x
   x = 10,178,186,769/72,131.50
6. Step 6: Final answer
   x = 141,105.99