Finding the Third Proportional to 578,151 and 848,329.50

Step by Step Solution

1. Step 1: Write the proportion equation
   578,151 : 848,329.50 = 848,329.50 : x
2. Step 2: Convert to fraction form
   578,151/848,329.50 = 848,329.50/x
3. Step 3: Cross multiply
   578,151x = 848,329.50 × 848,329.50
4. Step 4: Simplify right side
   578,151x = 719,662,940,570.25
5. Step 5: Solve for x
   x = 719,662,940,570.25/578,151
6. Step 6: Final answer
   x = 1,244,766.40