Finding the Third Proportional to 72,619 and 120,008

Step by Step Solution

1. Step 1: Write the proportion equation
   72,619 : 120,008 = 120,008 : x
2. Step 2: Convert to fraction form
   72,619/120,008 = 120,008/x
3. Step 3: Cross multiply
   72,619x = 120,008 × 120,008
4. Step 4: Simplify right side
   72,619x = 14,401,920,064
5. Step 5: Solve for x
   x = 14,401,920,064/72,619
6. Step 6: Final answer
   x = 198,321.65