Finding the Third Proportional to 353,867,978,134 and 779,865,520,274

Step by Step Solution

1. Step 1: Write the proportion equation
   353,867,978,134 : 779,865,520,274 = 779,865,520,274 : x
2. Step 2: Convert to fraction form
   353,867,978,134/779,865,520,274 = 779,865,520,274/x
3. Step 3: Cross multiply
   353,867,978,134x = 779,865,520,274 × 779,865,520,274
4. Step 4: Simplify right side
   353,867,978,134x = 608,190,229,712,236,745,588,736
5. Step 5: Solve for x
   x = 608,190,229,712,236,745,588,736/353,867,978,134
6. Step 6: Final answer
   x = 1,718,692,470,902.05