Finding the Third Proportional to 109,453 and 235,978

Step by Step Solution

1. Step 1: Write the proportion equation
   109,453 : 235,978 = 235,978 : x
2. Step 2: Convert to fraction form
   109,453/235,978 = 235,978/x
3. Step 3: Cross multiply
   109,453x = 235,978 × 235,978
4. Step 4: Simplify right side
   109,453x = 55,685,616,484
5. Step 5: Solve for x
   x = 55,685,616,484/109,453
6. Step 6: Final answer
   x = 508,762.82