Finding the Third Proportional to 156,972 and 223,618

Step by Step Solution

1. Step 1: Write the proportion equation
   156,972 : 223,618 = 223,618 : x
2. Step 2: Convert to fraction form
   156,972/223,618 = 223,618/x
3. Step 3: Cross multiply
   156,972x = 223,618 × 223,618
4. Step 4: Simplify right side
   156,972x = 50,005,009,924
5. Step 5: Solve for x
   x = 50,005,009,924/156,972
6. Step 6: Final answer
   x = 318,560.06