Finding the Third Proportional to 7,900.78 and 16,926.09

Step by Step Solution

1. Step 1: Write the proportion equation
   7,900.78 : 16,926.09 = 16,926.09 : x
2. Step 2: Convert to fraction form
   7,900.78/16,926.09 = 16,926.09/x
3. Step 3: Cross multiply
   7,900.78x = 16,926.09 × 16,926.09
4. Step 4: Simplify right side
   7,900.78x = 286,492,649.63
5. Step 5: Solve for x
   x = 286,492,649.63/7,900.78
6. Step 6: Final answer
   x = 36,261.31