Finding the Third Proportional to 148,738.50 and 327,123

Step by Step Solution

1. Step 1: Write the proportion equation
   148,738.50 : 327,123 = 327,123 : x
2. Step 2: Convert to fraction form
   148,738.50/327,123 = 327,123/x
3. Step 3: Cross multiply
   148,738.50x = 327,123 × 327,123
4. Step 4: Simplify right side
   148,738.50x = 107,009,457,129
5. Step 5: Solve for x
   x = 107,009,457,129/148,738.50
6. Step 6: Final answer
   x = 719,446.93