Finding the Third Proportional to 200,275.50 and 428,982

Step by Step Solution

1. Step 1: Write the proportion equation
   200,275.50 : 428,982 = 428,982 : x
2. Step 2: Convert to fraction form
   200,275.50/428,982 = 428,982/x
3. Step 3: Cross multiply
   200,275.50x = 428,982 × 428,982
4. Step 4: Simplify right side
   200,275.50x = 184,025,556,324
5. Step 5: Solve for x
   x = 184,025,556,324/200,275.50
6. Step 6: Final answer
   x = 918,862.05