Finding the Third Proportional to 109,109,288 and 238,217,644

Step by Step Solution

1. Step 1: Write the proportion equation
   109,109,288 : 238,217,644 = 238,217,644 : x
2. Step 2: Convert to fraction form
   109,109,288/238,217,644 = 238,217,644/x
3. Step 3: Cross multiply
   109,109,288x = 238,217,644 × 238,217,644
4. Step 4: Simplify right side
   109,109,288x = 56,747,645,912,910,736
5. Step 5: Solve for x
   x = 56,747,645,912,910,736/109,109,288
6. Step 6: Final answer
   x = 520,099,131.37