Finding the Third Proportional to 298,725 and 473,245.50

Step by Step Solution

1. Step 1: Write the proportion equation
   298,725 : 473,245.50 = 473,245.50 : x
2. Step 2: Convert to fraction form
   298,725/473,245.50 = 473,245.50/x
3. Step 3: Cross multiply
   298,725x = 473,245.50 × 473,245.50
4. Step 4: Simplify right side
   298,725x = 223,961,303,270.25
5. Step 5: Solve for x
   x = 223,961,303,270.25/298,725
6. Step 6: Final answer
   x = 749,724.00