Finding the Third Proportional to 249,076.50 and 515,876

Step by Step Solution

1. Step 1: Write the proportion equation
   249,076.50 : 515,876 = 515,876 : x
2. Step 2: Convert to fraction form
   249,076.50/515,876 = 515,876/x
3. Step 3: Cross multiply
   249,076.50x = 515,876 × 515,876
4. Step 4: Simplify right side
   249,076.50x = 266,128,047,376
5. Step 5: Solve for x
   x = 266,128,047,376/249,076.50
6. Step 6: Final answer
   x = 1,068,459.08