Finding the Third Proportional to 109,490 and 236,068

Step by Step Solution

1. Step 1: Write the proportion equation
   109,490 : 236,068 = 236,068 : x
2. Step 2: Convert to fraction form
   109,490/236,068 = 236,068/x
3. Step 3: Cross multiply
   109,490x = 236,068 × 236,068
4. Step 4: Simplify right side
   109,490x = 55,728,100,624
5. Step 5: Solve for x
   x = 55,728,100,624/109,490
6. Step 6: Final answer
   x = 508,978.91