Finding the Third Proportional to 370,881 and 558,049.50

Step by Step Solution

1. Step 1: Write the proportion equation
   370,881 : 558,049.50 = 558,049.50 : x
2. Step 2: Convert to fraction form
   370,881/558,049.50 = 558,049.50/x
3. Step 3: Cross multiply
   370,881x = 558,049.50 × 558,049.50
4. Step 4: Simplify right side
   370,881x = 311,419,244,450.25
5. Step 5: Solve for x
   x = 311,419,244,450.25/370,881
6. Step 6: Final answer
   x = 839,674.30