Finding the Third Proportional to 369,724 and 570,890

Step by Step Solution

1. Step 1: Write the proportion equation
   369,724 : 570,890 = 570,890 : x
2. Step 2: Convert to fraction form
   369,724/570,890 = 570,890/x
3. Step 3: Cross multiply
   369,724x = 570,890 × 570,890
4. Step 4: Simplify right side
   369,724x = 325,915,392,100
5. Step 5: Solve for x
   x = 325,915,392,100/369,724
6. Step 6: Final answer
   x = 881,509.97