Finding the Third Proportional to 388,110 and 848,356.50

Step by Step Solution

1. Step 1: Write the proportion equation
   388,110 : 848,356.50 = 848,356.50 : x
2. Step 2: Convert to fraction form
   388,110/848,356.50 = 848,356.50/x
3. Step 3: Cross multiply
   388,110x = 848,356.50 × 848,356.50
4. Step 4: Simplify right side
   388,110x = 719,708,751,092.25
5. Step 5: Solve for x
   x = 719,708,751,092.25/388,110
6. Step 6: Final answer
   x = 1,854,393.73