Finding the Third Proportional to 99,477 and 154,260

Step by Step Solution

1. Step 1: Write the proportion equation
   99,477 : 154,260 = 154,260 : x
2. Step 2: Convert to fraction form
   99,477/154,260 = 154,260/x
3. Step 3: Cross multiply
   99,477x = 154,260 × 154,260
4. Step 4: Simplify right side
   99,477x = 23,796,147,600
5. Step 5: Solve for x
   x = 23,796,147,600/99,477
6. Step 6: Final answer
   x = 239,212.56