Finding the Third Proportional to 140,220 and 304,098.50

Step by Step Solution

1. Step 1: Write the proportion equation
   140,220 : 304,098.50 = 304,098.50 : x
2. Step 2: Convert to fraction form
   140,220/304,098.50 = 304,098.50/x
3. Step 3: Cross multiply
   140,220x = 304,098.50 × 304,098.50
4. Step 4: Simplify right side
   140,220x = 92,475,897,702.25
5. Step 5: Solve for x
   x = 92,475,897,702.25/140,220
6. Step 6: Final answer
   x = 659,505.76