Finding the Third Proportional to 298,020 and 649,240.50

Step by Step Solution

1. Step 1: Write the proportion equation
   298,020 : 649,240.50 = 649,240.50 : x
2. Step 2: Convert to fraction form
   298,020/649,240.50 = 649,240.50/x
3. Step 3: Cross multiply
   298,020x = 649,240.50 × 649,240.50
4. Step 4: Simplify right side
   298,020x = 421,513,226,840.25
5. Step 5: Solve for x
   x = 421,513,226,840.25/298,020
6. Step 6: Final answer
   x = 1,414,378.99