Finding the Third Proportional to 243,093 and 384,618

Step by Step Solution

1. Step 1: Write the proportion equation
   243,093 : 384,618 = 384,618 : x
2. Step 2: Convert to fraction form
   243,093/384,618 = 384,618/x
3. Step 3: Cross multiply
   243,093x = 384,618 × 384,618
4. Step 4: Simplify right side
   243,093x = 147,931,005,924
5. Step 5: Solve for x
   x = 147,931,005,924/243,093
6. Step 6: Final answer
   x = 608,536.67