Finding the Third Proportional to 393,484 and 847,168.50

Step by Step Solution

1. Step 1: Write the proportion equation
   393,484 : 847,168.50 = 847,168.50 : x
2. Step 2: Convert to fraction form
   393,484/847,168.50 = 847,168.50/x
3. Step 3: Cross multiply
   393,484x = 847,168.50 × 847,168.50
4. Step 4: Simplify right side
   393,484x = 717,694,467,392.25
5. Step 5: Solve for x
   x = 717,694,467,392.25/393,484
6. Step 6: Final answer
   x = 1,823,948.29