Finding the Third Proportional to 72,922.78 and 140,719.78

Step by Step Solution

1. Step 1: Write the proportion equation
   72,922.78 : 140,719.78 = 140,719.78 : x
2. Step 2: Convert to fraction form
   72,922.78/140,719.78 = 140,719.78/x
3. Step 3: Cross multiply
   72,922.78x = 140,719.78 × 140,719.78
4. Step 4: Simplify right side
   72,922.78x = 19,802,056,835.05
5. Step 5: Solve for x
   x = 19,802,056,835.05/72,922.78
6. Step 6: Final answer
   x = 271,548.29