Finding the Third Proportional to 368,580.50 and 803,857

Step by Step Solution

1. Step 1: Write the proportion equation
   368,580.50 : 803,857 = 803,857 : x
2. Step 2: Convert to fraction form
   368,580.50/803,857 = 803,857/x
3. Step 3: Cross multiply
   368,580.50x = 803,857 × 803,857
4. Step 4: Simplify right side
   368,580.50x = 646,186,076,449
5. Step 5: Solve for x
   x = 646,186,076,449/368,580.50
6. Step 6: Final answer
   x = 1,753,174.89