Finding the Third Proportional to 105,621.50 and 234,858

Step by Step Solution

1. Step 1: Write the proportion equation
   105,621.50 : 234,858 = 234,858 : x
2. Step 2: Convert to fraction form
   105,621.50/234,858 = 234,858/x
3. Step 3: Cross multiply
   105,621.50x = 234,858 × 234,858
4. Step 4: Simplify right side
   105,621.50x = 55,158,280,164
5. Step 5: Solve for x
   x = 55,158,280,164/105,621.50
6. Step 6: Final answer
   x = 522,225.87