Finding the Third Proportional to 115,074 and 238,140

Step by Step Solution

1. Step 1: Write the proportion equation
   115,074 : 238,140 = 238,140 : x
2. Step 2: Convert to fraction form
   115,074/238,140 = 238,140/x
3. Step 3: Cross multiply
   115,074x = 238,140 × 238,140
4. Step 4: Simplify right side
   115,074x = 56,710,659,600
5. Step 5: Solve for x
   x = 56,710,659,600/115,074
6. Step 6: Final answer
   x = 492,819.05