Finding the Third Proportional to 91,979,609 and 200,288,818

Step by Step Solution

1. Step 1: Write the proportion equation
   91,979,609 : 200,288,818 = 200,288,818 : x
2. Step 2: Convert to fraction form
   91,979,609/200,288,818 = 200,288,818/x
3. Step 3: Cross multiply
   91,979,609x = 200,288,818 × 200,288,818
4. Step 4: Simplify right side
   91,979,609x = 40,115,610,615,837,120
5. Step 5: Solve for x
   x = 40,115,610,615,837,120/91,979,609
6. Step 6: Final answer
   x = 436,135,911.56