Finding the Third Proportional to 134,939.50 and 296,123

Step by Step Solution

1. Step 1: Write the proportion equation
   134,939.50 : 296,123 = 296,123 : x
2. Step 2: Convert to fraction form
   134,939.50/296,123 = 296,123/x
3. Step 3: Cross multiply
   134,939.50x = 296,123 × 296,123
4. Step 4: Simplify right side
   134,939.50x = 87,688,831,129
5. Step 5: Solve for x
   x = 87,688,831,129/134,939.50
6. Step 6: Final answer
   x = 649,838.12