Finding the Third Proportional to 156,942 and 240,123

Step by Step Solution

1. Step 1: Write the proportion equation
   156,942 : 240,123 = 240,123 : x
2. Step 2: Convert to fraction form
   156,942/240,123 = 240,123/x
3. Step 3: Cross multiply
   156,942x = 240,123 × 240,123
4. Step 4: Simplify right side
   156,942x = 57,659,055,129
5. Step 5: Solve for x
   x = 57,659,055,129/156,942
6. Step 6: Final answer
   x = 367,390.85