Finding the Third Proportional to 294,030 and 439,870.50

Step by Step Solution

1. Step 1: Write the proportion equation
   294,030 : 439,870.50 = 439,870.50 : x
2. Step 2: Convert to fraction form
   294,030/439,870.50 = 439,870.50/x
3. Step 3: Cross multiply
   294,030x = 439,870.50 × 439,870.50
4. Step 4: Simplify right side
   294,030x = 193,486,056,770.25
5. Step 5: Solve for x
   x = 193,486,056,770.25/294,030
6. Step 6: Final answer
   x = 658,048.69