Finding the Third Proportional to 388,146 and 848,706

Step by Step Solution

1. Step 1: Write the proportion equation
   388,146 : 848,706 = 848,706 : x
2. Step 2: Convert to fraction form
   388,146/848,706 = 848,706/x
3. Step 3: Cross multiply
   388,146x = 848,706 × 848,706
4. Step 4: Simplify right side
   388,146x = 720,301,874,436
5. Step 5: Solve for x
   x = 720,301,874,436/388,146
6. Step 6: Final answer
   x = 1,855,749.83