Finding the Third Proportional to 72,619 and 108,118

Step by Step Solution

1. Step 1: Write the proportion equation
   72,619 : 108,118 = 108,118 : x
2. Step 2: Convert to fraction form
   72,619/108,118 = 108,118/x
3. Step 3: Cross multiply
   72,619x = 108,118 × 108,118
4. Step 4: Simplify right side
   72,619x = 11,689,501,924
5. Step 5: Solve for x
   x = 11,689,501,924/72,619
6. Step 6: Final answer
   x = 160,970.30