Finding the Third Proportional to 253,528.50 and 538,155

Step by Step Solution

1. Step 1: Write the proportion equation
   253,528.50 : 538,155 = 538,155 : x
2. Step 2: Convert to fraction form
   253,528.50/538,155 = 538,155/x
3. Step 3: Cross multiply
   253,528.50x = 538,155 × 538,155
4. Step 4: Simplify right side
   253,528.50x = 289,610,804,025
5. Step 5: Solve for x
   x = 289,610,804,025/253,528.50
6. Step 6: Final answer
   x = 1,142,320.50