Finding the Third Proportional to 567,189 and 878,669.50

Step by Step Solution

1. Step 1: Write the proportion equation
   567,189 : 878,669.50 = 878,669.50 : x
2. Step 2: Convert to fraction form
   567,189/878,669.50 = 878,669.50/x
3. Step 3: Cross multiply
   567,189x = 878,669.50 × 878,669.50
4. Step 4: Simplify right side
   567,189x = 772,060,090,230.25
5. Step 5: Solve for x
   x = 772,060,090,230.25/567,189
6. Step 6: Final answer
   x = 1,361,204.27