Finding the Third Proportional to 567,181.50 and 878,659.50

Step by Step Solution

1. Step 1: Write the proportion equation
   567,181.50 : 878,659.50 = 878,659.50 : x
2. Step 2: Convert to fraction form
   567,181.50/878,659.50 = 878,659.50/x
3. Step 3: Cross multiply
   567,181.50x = 878,659.50 × 878,659.50
4. Step 4: Simplify right side
   567,181.50x = 772,042,516,940.25
5. Step 5: Solve for x
   x = 772,042,516,940.25/567,181.50
6. Step 6: Final answer
   x = 1,361,191.29