Finding the Third Proportional to 298,525.50 and 648,972

Step by Step Solution

1. Step 1: Write the proportion equation
   298,525.50 : 648,972 = 648,972 : x
2. Step 2: Convert to fraction form
   298,525.50/648,972 = 648,972/x
3. Step 3: Cross multiply
   298,525.50x = 648,972 × 648,972
4. Step 4: Simplify right side
   298,525.50x = 421,164,656,784
5. Step 5: Solve for x
   x = 421,164,656,784/298,525.50
6. Step 6: Final answer
   x = 1,410,816.35