Finding the Third Proportional to 152,160 and 308,928

Step by Step Solution

1. Step 1: Write the proportion equation
   152,160 : 308,928 = 308,928 : x
2. Step 2: Convert to fraction form
   152,160/308,928 = 308,928/x
3. Step 3: Cross multiply
   152,160x = 308,928 × 308,928
4. Step 4: Simplify right side
   152,160x = 95,436,509,184
5. Step 5: Solve for x
   x = 95,436,509,184/152,160
6. Step 6: Final answer
   x = 627,211.55