Finding the Third Proportional to 215,973 and 243,037.50

Step by Step Solution

1. Step 1: Write the proportion equation
   215,973 : 243,037.50 = 243,037.50 : x
2. Step 2: Convert to fraction form
   215,973/243,037.50 = 243,037.50/x
3. Step 3: Cross multiply
   215,973x = 243,037.50 × 243,037.50
4. Step 4: Simplify right side
   215,973x = 59,067,226,406.25
5. Step 5: Solve for x
   x = 59,067,226,406.25/215,973
6. Step 6: Final answer
   x = 273,493.57