Finding the Third Proportional to 240,921 and 352,741.50

Step by Step Solution

1. Step 1: Write the proportion equation
   240,921 : 352,741.50 = 352,741.50 : x
2. Step 2: Convert to fraction form
   240,921/352,741.50 = 352,741.50/x
3. Step 3: Cross multiply
   240,921x = 352,741.50 × 352,741.50
4. Step 4: Simplify right side
   240,921x = 124,426,565,822.25
5. Step 5: Solve for x
   x = 124,426,565,822.25/240,921
6. Step 6: Final answer
   x = 516,462.10