Finding the Third Proportional to 388,082.50 and 848,309

Step by Step Solution

1. Step 1: Write the proportion equation
   388,082.50 : 848,309 = 848,309 : x
2. Step 2: Convert to fraction form
   388,082.50/848,309 = 848,309/x
3. Step 3: Cross multiply
   388,082.50x = 848,309 × 848,309
4. Step 4: Simplify right side
   388,082.50x = 719,628,159,481
5. Step 5: Solve for x
   x = 719,628,159,481/388,082.50
6. Step 6: Final answer
   x = 1,854,317.47