Finding the Third Proportional to 89,603,789 and 194,976,395

Step by Step Solution

1. Step 1: Write the proportion equation
   89,603,789 : 194,976,395 = 194,976,395 : x
2. Step 2: Convert to fraction form
   89,603,789/194,976,395 = 194,976,395/x
3. Step 3: Cross multiply
   89,603,789x = 194,976,395 × 194,976,395
4. Step 4: Simplify right side
   89,603,789x = 38,015,794,607,196,024
5. Step 5: Solve for x
   x = 38,015,794,607,196,024/89,603,789
6. Step 6: Final answer
   x = 424,265,480.64