Finding the Third Proportional to 89,017,828 and 189,793,696

Step by Step Solution

1. Step 1: Write the proportion equation
   89,017,828 : 189,793,696 = 189,793,696 : x
2. Step 2: Convert to fraction form
   89,017,828/189,793,696 = 189,793,696/x
3. Step 3: Cross multiply
   89,017,828x = 189,793,696 × 189,793,696
4. Step 4: Simplify right side
   89,017,828x = 36,021,647,041,340,416
5. Step 5: Solve for x
   x = 36,021,647,041,340,416/89,017,828
6. Step 6: Final answer
   x = 404,656,548.59