Finding the Third Proportional to 17,991,172 and 27,636,412

Step by Step Solution

1. Step 1: Write the proportion equation
   17,991,172 : 27,636,412 = 27,636,412 : x
2. Step 2: Convert to fraction form
   17,991,172/27,636,412 = 27,636,412/x
3. Step 3: Cross multiply
   17,991,172x = 27,636,412 × 27,636,412
4. Step 4: Simplify right side
   17,991,172x = 763,771,268,233,744
5. Step 5: Solve for x
   x = 763,771,268,233,744/17,991,172
6. Step 6: Final answer
   x = 42,452,557.75