Finding the Third Proportional to 579,784.50 and 867,007.50

Step by Step Solution

1. Step 1: Write the proportion equation
   579,784.50 : 867,007.50 = 867,007.50 : x
2. Step 2: Convert to fraction form
   579,784.50/867,007.50 = 867,007.50/x
3. Step 3: Cross multiply
   579,784.50x = 867,007.50 × 867,007.50
4. Step 4: Simplify right side
   579,784.50x = 751,702,005,056.25
5. Step 5: Solve for x
   x = 751,702,005,056.25/579,784.50
6. Step 6: Final answer
   x = 1,296,519.66