Finding the Third Proportional to 238,164,538 and 510,789,108

Step by Step Solution

1. Step 1: Write the proportion equation
   238,164,538 : 510,789,108 = 510,789,108 : x
2. Step 2: Convert to fraction form
   238,164,538/510,789,108 = 510,789,108/x
3. Step 3: Cross multiply
   238,164,538x = 510,789,108 × 510,789,108
4. Step 4: Simplify right side
   238,164,538x = 260,905,512,851,435,648
5. Step 5: Solve for x
   x = 260,905,512,851,435,648/238,164,538
6. Step 6: Final answer
   x = 1,095,484,302.75