Finding the Third Proportional to 388,427.50 and 847,466

Step by Step Solution

1. Step 1: Write the proportion equation
   388,427.50 : 847,466 = 847,466 : x
2. Step 2: Convert to fraction form
   388,427.50/847,466 = 847,466/x
3. Step 3: Cross multiply
   388,427.50x = 847,466 × 847,466
4. Step 4: Simplify right side
   388,427.50x = 718,198,621,156
5. Step 5: Solve for x
   x = 718,198,621,156/388,427.50
6. Step 6: Final answer
   x = 1,848,990.15