Finding the Third Proportional to 89,017,863 and 189,793,764

Step by Step Solution

1. Step 1: Write the proportion equation
   89,017,863 : 189,793,764 = 189,793,764 : x
2. Step 2: Convert to fraction form
   89,017,863/189,793,764 = 189,793,764/x
3. Step 3: Cross multiply
   89,017,863x = 189,793,764 × 189,793,764
4. Step 4: Simplify right side
   89,017,863x = 36,021,672,853,287,696
5. Step 5: Solve for x
   x = 36,021,672,853,287,696/89,017,863
6. Step 6: Final answer
   x = 404,656,679.45