Finding the Third Proportional to 385,846 and 846,388

Step by Step Solution

1. Step 1: Write the proportion equation
   385,846 : 846,388 = 846,388 : x
2. Step 2: Convert to fraction form
   385,846/846,388 = 846,388/x
3. Step 3: Cross multiply
   385,846x = 846,388 × 846,388
4. Step 4: Simplify right side
   385,846x = 716,372,646,544
5. Step 5: Solve for x
   x = 716,372,646,544/385,846
6. Step 6: Final answer
   x = 1,856,628.41