Finding the Third Proportional to 215,500.50 and 437,148

Step by Step Solution

1. Step 1: Write the proportion equation
   215,500.50 : 437,148 = 437,148 : x
2. Step 2: Convert to fraction form
   215,500.50/437,148 = 437,148/x
3. Step 3: Cross multiply
   215,500.50x = 437,148 × 437,148
4. Step 4: Simplify right side
   215,500.50x = 191,098,373,904
5. Step 5: Solve for x
   x = 191,098,373,904/215,500.50
6. Step 6: Final answer
   x = 886,765.34