Finding the Third Proportional to 215,286 and 336,010.50

Step by Step Solution

1. Step 1: Write the proportion equation
   215,286 : 336,010.50 = 336,010.50 : x
2. Step 2: Convert to fraction form
   215,286/336,010.50 = 336,010.50/x
3. Step 3: Cross multiply
   215,286x = 336,010.50 × 336,010.50
4. Step 4: Simplify right side
   215,286x = 112,903,056,110.25
5. Step 5: Solve for x
   x = 112,903,056,110.25/215,286
6. Step 6: Final answer
   x = 524,432.88