Finding the Third Proportional to 158,438 and 352,300

Step by Step Solution

1. Step 1: Write the proportion equation
   158,438 : 352,300 = 352,300 : x
2. Step 2: Convert to fraction form
   158,438/352,300 = 352,300/x
3. Step 3: Cross multiply
   158,438x = 352,300 × 352,300
4. Step 4: Simplify right side
   158,438x = 124,115,290,000
5. Step 5: Solve for x
   x = 124,115,290,000/158,438
6. Step 6: Final answer
   x = 783,368.19