Finding the Third Proportional to 179,308.50 and 390,160.50

Step by Step Solution

1. Step 1: Write the proportion equation
   179,308.50 : 390,160.50 = 390,160.50 : x
2. Step 2: Convert to fraction form
   179,308.50/390,160.50 = 390,160.50/x
3. Step 3: Cross multiply
   179,308.50x = 390,160.50 × 390,160.50
4. Step 4: Simplify right side
   179,308.50x = 152,225,215,760.25
5. Step 5: Solve for x
   x = 152,225,215,760.25/179,308.50
6. Step 6: Final answer
   x = 848,957.05