Finding the Third Proportional to 603,661.50 and 846,085.50

Step by Step Solution

1. Step 1: Write the proportion equation
   603,661.50 : 846,085.50 = 846,085.50 : x
2. Step 2: Convert to fraction form
   603,661.50/846,085.50 = 846,085.50/x
3. Step 3: Cross multiply
   603,661.50x = 846,085.50 × 846,085.50
4. Step 4: Simplify right side
   603,661.50x = 715,860,673,310.25
5. Step 5: Solve for x
   x = 715,860,673,310.25/603,661.50
6. Step 6: Final answer
   x = 1,185,864.38