Finding the Third Proportional to 388,107 and 848,350.50

Step by Step Solution

1. Step 1: Write the proportion equation
   388,107 : 848,350.50 = 848,350.50 : x
2. Step 2: Convert to fraction form
   388,107/848,350.50 = 848,350.50/x
3. Step 3: Cross multiply
   388,107x = 848,350.50 × 848,350.50
4. Step 4: Simplify right side
   388,107x = 719,698,570,850.25
5. Step 5: Solve for x
   x = 719,698,570,850.25/388,107
6. Step 6: Final answer
   x = 1,854,381.84