Finding the Third Proportional to 99,212 and 152,355

Step by Step Solution

1. Step 1: Write the proportion equation
   99,212 : 152,355 = 152,355 : x
2. Step 2: Convert to fraction form
   99,212/152,355 = 152,355/x
3. Step 3: Cross multiply
   99,212x = 152,355 × 152,355
4. Step 4: Simplify right side
   99,212x = 23,212,046,025
5. Step 5: Solve for x
   x = 23,212,046,025/99,212
6. Step 6: Final answer
   x = 233,964.10