Finding the Third Proportional to 111,402 and 234,468

Step by Step Solution

1. Step 1: Write the proportion equation
   111,402 : 234,468 = 234,468 : x
2. Step 2: Convert to fraction form
   111,402/234,468 = 234,468/x
3. Step 3: Cross multiply
   111,402x = 234,468 × 234,468
4. Step 4: Simplify right side
   111,402x = 54,975,243,024
5. Step 5: Solve for x
   x = 54,975,243,024/111,402
6. Step 6: Final answer
   x = 493,485.24