Finding the Third Proportional to 215,013 and 333,607.50

Step by Step Solution

1. Step 1: Write the proportion equation
   215,013 : 333,607.50 = 333,607.50 : x
2. Step 2: Convert to fraction form
   215,013/333,607.50 = 333,607.50/x
3. Step 3: Cross multiply
   215,013x = 333,607.50 × 333,607.50
4. Step 4: Simplify right side
   215,013x = 111,293,964,056.25
5. Step 5: Solve for x
   x = 111,293,964,056.25/215,013
6. Step 6: Final answer
   x = 517,615.05