Finding the Third Proportional to 45,870.50 and 72,979

Step by Step Solution

1. Step 1: Write the proportion equation
   45,870.50 : 72,979 = 72,979 : x
2. Step 2: Convert to fraction form
   45,870.50/72,979 = 72,979/x
3. Step 3: Cross multiply
   45,870.50x = 72,979 × 72,979
4. Step 4: Simplify right side
   45,870.50x = 5,325,934,441
5. Step 5: Solve for x
   x = 5,325,934,441/45,870.50
6. Step 6: Final answer
   x = 116,108.05