Finding the Third Proportional to 5,981,391 and 13,120,698

Step by Step Solution

1. Step 1: Write the proportion equation
   5,981,391 : 13,120,698 = 13,120,698 : x
2. Step 2: Convert to fraction form
   5,981,391/13,120,698 = 13,120,698/x
3. Step 3: Cross multiply
   5,981,391x = 13,120,698 × 13,120,698
4. Step 4: Simplify right side
   5,981,391x = 172,152,716,007,204
5. Step 5: Solve for x
   x = 172,152,716,007,204/5,981,391
6. Step 6: Final answer
   x = 28,781,384.80