Finding the Third Proportional to 81,816 and 120,030

Step by Step Solution

1. Step 1: Write the proportion equation
   81,816 : 120,030 = 120,030 : x
2. Step 2: Convert to fraction form
   81,816/120,030 = 120,030/x
3. Step 3: Cross multiply
   81,816x = 120,030 × 120,030
4. Step 4: Simplify right side
   81,816x = 14,407,200,900
5. Step 5: Solve for x
   x = 14,407,200,900/81,816
6. Step 6: Final answer
   x = 176,092.71