Finding the Third Proportional to 156,940 and 223,650

Step by Step Solution

1. Step 1: Write the proportion equation
   156,940 : 223,650 = 223,650 : x
2. Step 2: Convert to fraction form
   156,940/223,650 = 223,650/x
3. Step 3: Cross multiply
   156,940x = 223,650 × 223,650
4. Step 4: Simplify right side
   156,940x = 50,019,322,500
5. Step 5: Solve for x
   x = 50,019,322,500/156,940
6. Step 6: Final answer
   x = 318,716.21