Finding the Third Proportional to 564,784.50 and 860,403

Step by Step Solution

1. Step 1: Write the proportion equation
   564,784.50 : 860,403 = 860,403 : x
2. Step 2: Convert to fraction form
   564,784.50/860,403 = 860,403/x
3. Step 3: Cross multiply
   564,784.50x = 860,403 × 860,403
4. Step 4: Simplify right side
   564,784.50x = 740,293,322,409
5. Step 5: Solve for x
   x = 740,293,322,409/564,784.50
6. Step 6: Final answer
   x = 1,310,753.61