Finding the Third Proportional to 12,926,380 and 19,658,166

Step by Step Solution

1. Step 1: Write the proportion equation
   12,926,380 : 19,658,166 = 19,658,166 : x
2. Step 2: Convert to fraction form
   12,926,380/19,658,166 = 19,658,166/x
3. Step 3: Cross multiply
   12,926,380x = 19,658,166 × 19,658,166
4. Step 4: Simplify right side
   12,926,380x = 386,443,490,483,556
5. Step 5: Solve for x
   x = 386,443,490,483,556/12,926,380
6. Step 6: Final answer
   x = 29,895,724.13