Finding the Third Proportional to 152,388 and 238,290

Step by Step Solution

1. Step 1: Write the proportion equation
   152,388 : 238,290 = 238,290 : x
2. Step 2: Convert to fraction form
   152,388/238,290 = 238,290/x
3. Step 3: Cross multiply
   152,388x = 238,290 × 238,290
4. Step 4: Simplify right side
   152,388x = 56,782,124,100
5. Step 5: Solve for x
   x = 56,782,124,100/152,388
6. Step 6: Final answer
   x = 372,615.46