Finding the Third Proportional to 388,116 and 848,371.50

Step by Step Solution

1. Step 1: Write the proportion equation
   388,116 : 848,371.50 = 848,371.50 : x
2. Step 2: Convert to fraction form
   388,116/848,371.50 = 848,371.50/x
3. Step 3: Cross multiply
   388,116x = 848,371.50 × 848,371.50
4. Step 4: Simplify right side
   388,116x = 719,734,202,012.25
5. Step 5: Solve for x
   x = 719,734,202,012.25/388,116
6. Step 6: Final answer
   x = 1,854,430.64