Finding the Third Proportional to 564,784.50 and 860,415

Step by Step Solution

1. Step 1: Write the proportion equation
   564,784.50 : 860,415 = 860,415 : x
2. Step 2: Convert to fraction form
   564,784.50/860,415 = 860,415/x
3. Step 3: Cross multiply
   564,784.50x = 860,415 × 860,415
4. Step 4: Simplify right side
   564,784.50x = 740,313,972,225
5. Step 5: Solve for x
   x = 740,313,972,225/564,784.50
6. Step 6: Final answer
   x = 1,310,790.17