Finding the Third Proportional to 238,164,538 and 510,789,110

Step by Step Solution

1. Step 1: Write the proportion equation
   238,164,538 : 510,789,110 = 510,789,110 : x
2. Step 2: Convert to fraction form
   238,164,538/510,789,110 = 510,789,110/x
3. Step 3: Cross multiply
   238,164,538x = 510,789,110 × 510,789,110
4. Step 4: Simplify right side
   238,164,538x = 260,905,514,894,592,096
5. Step 5: Solve for x
   x = 260,905,514,894,592,096/238,164,538
6. Step 6: Final answer
   x = 1,095,484,311.33