Finding the Third Proportional to 5,172,998 and 12,194,196

Step by Step Solution

1. Step 1: Write the proportion equation
   5,172,998 : 12,194,196 = 12,194,196 : x
2. Step 2: Convert to fraction form
   5,172,998/12,194,196 = 12,194,196/x
3. Step 3: Cross multiply
   5,172,998x = 12,194,196 × 12,194,196
4. Step 4: Simplify right side
   5,172,998x = 148,698,416,086,416
5. Step 5: Solve for x
   x = 148,698,416,086,416/5,172,998
6. Step 6: Final answer
   x = 28,745,113.78