Finding the Third Proportional to 377,221.50 and 570,708

Step by Step Solution

1. Step 1: Write the proportion equation
   377,221.50 : 570,708 = 570,708 : x
2. Step 2: Convert to fraction form
   377,221.50/570,708 = 570,708/x
3. Step 3: Cross multiply
   377,221.50x = 570,708 × 570,708
4. Step 4: Simplify right side
   377,221.50x = 325,707,621,264
5. Step 5: Solve for x
   x = 325,707,621,264/377,221.50
6. Step 6: Final answer
   x = 863,438.65