Finding the Third Proportional to 9,489,244,680 and 19,763,897,760

Step by Step Solution

1. Step 1: Write the proportion equation
   9,489,244,680 : 19,763,897,760 = 19,763,897,760 : x
2. Step 2: Convert to fraction form
   9,489,244,680/19,763,897,760 = 19,763,897,760/x
3. Step 3: Cross multiply
   9,489,244,680x = 19,763,897,760 × 19,763,897,760
4. Step 4: Simplify right side
   9,489,244,680x = 390,611,654,667,733,041,152
5. Step 5: Solve for x
   x = 390,611,654,667,733,041,152/9,489,244,680
6. Step 6: Final answer
   x = 41,163,619,217.34