Finding the Third Proportional to 72,144 and 100,902

Step by Step Solution

1. Step 1: Write the proportion equation
   72,144 : 100,902 = 100,902 : x
2. Step 2: Convert to fraction form
   72,144/100,902 = 100,902/x
3. Step 3: Cross multiply
   72,144x = 100,902 × 100,902
4. Step 4: Simplify right side
   72,144x = 10,181,213,604
5. Step 5: Solve for x
   x = 10,181,213,604/72,144
6. Step 6: Final answer
   x = 141,123.50