Finding the Third Proportional to 17,290,686 and 27,123,021

Step by Step Solution

1. Step 1: Write the proportion equation
   17,290,686 : 27,123,021 = 27,123,021 : x
2. Step 2: Convert to fraction form
   17,290,686/27,123,021 = 27,123,021/x
3. Step 3: Cross multiply
   17,290,686x = 27,123,021 × 27,123,021
4. Step 4: Simplify right side
   17,290,686x = 735,658,268,166,441
5. Step 5: Solve for x
   x = 735,658,268,166,441/17,290,686
6. Step 6: Final answer
   x = 42,546,505.57