Finding the Third Proportional to 120,397.50 and 252,099

Step by Step Solution

1. Step 1: Write the proportion equation
   120,397.50 : 252,099 = 252,099 : x
2. Step 2: Convert to fraction form
   120,397.50/252,099 = 252,099/x
3. Step 3: Cross multiply
   120,397.50x = 252,099 × 252,099
4. Step 4: Simplify right side
   120,397.50x = 63,553,905,801
5. Step 5: Solve for x
   x = 63,553,905,801/120,397.50
6. Step 6: Final answer
   x = 527,867.32