Finding the Third Proportional to 353,988 and 530,878.50

Step by Step Solution

1. Step 1: Write the proportion equation
   353,988 : 530,878.50 = 530,878.50 : x
2. Step 2: Convert to fraction form
   353,988/530,878.50 = 530,878.50/x
3. Step 3: Cross multiply
   353,988x = 530,878.50 × 530,878.50
4. Step 4: Simplify right side
   353,988x = 281,831,981,762.25
5. Step 5: Solve for x
   x = 281,831,981,762.25/353,988
6. Step 6: Final answer
   x = 796,162.53