Finding the Third Proportional to 392,868 and 848,389.50

Step by Step Solution

1. Step 1: Write the proportion equation
   392,868 : 848,389.50 = 848,389.50 : x
2. Step 2: Convert to fraction form
   392,868/848,389.50 = 848,389.50/x
3. Step 3: Cross multiply
   392,868x = 848,389.50 × 848,389.50
4. Step 4: Simplify right side
   392,868x = 719,764,743,710.25
5. Step 5: Solve for x
   x = 719,764,743,710.25/392,868
6. Step 6: Final answer
   x = 1,832,077.81