Finding the Third Proportional to 298,500 and 614,520

Step by Step Solution

1. Step 1: Write the proportion equation
   298,500 : 614,520 = 614,520 : x
2. Step 2: Convert to fraction form
   298,500/614,520 = 614,520/x
3. Step 3: Cross multiply
   298,500x = 614,520 × 614,520
4. Step 4: Simplify right side
   298,500x = 377,634,830,400
5. Step 5: Solve for x
   x = 377,634,830,400/298,500
6. Step 6: Final answer
   x = 1,265,108.31