Finding the Third Proportional to 215,751 and 469,147.50

Step by Step Solution

1. Step 1: Write the proportion equation
   215,751 : 469,147.50 = 469,147.50 : x
2. Step 2: Convert to fraction form
   215,751/469,147.50 = 469,147.50/x
3. Step 3: Cross multiply
   215,751x = 469,147.50 × 469,147.50
4. Step 4: Simplify right side
   215,751x = 220,099,376,756.25
5. Step 5: Solve for x
   x = 220,099,376,756.25/215,751
6. Step 6: Final answer
   x = 1,020,154.61