Finding the Third Proportional to 388,426.50 and 847,464

Step by Step Solution

1. Step 1: Write the proportion equation
   388,426.50 : 847,464 = 847,464 : x
2. Step 2: Convert to fraction form
   388,426.50/847,464 = 847,464/x
3. Step 3: Cross multiply
   388,426.50x = 847,464 × 847,464
4. Step 4: Simplify right side
   388,426.50x = 718,195,231,296
5. Step 5: Solve for x
   x = 718,195,231,296/388,426.50
6. Step 6: Final answer
   x = 1,848,986.18