Finding the Third Proportional to 17,991,174 and 27,636,420

Step by Step Solution

1. Step 1: Write the proportion equation
   17,991,174 : 27,636,420 = 27,636,420 : x
2. Step 2: Convert to fraction form
   17,991,174/27,636,420 = 27,636,420/x
3. Step 3: Cross multiply
   17,991,174x = 27,636,420 × 27,636,420
4. Step 4: Simplify right side
   17,991,174x = 763,771,710,416,400
5. Step 5: Solve for x
   x = 763,771,710,416,400/17,991,174
6. Step 6: Final answer
   x = 42,452,577.60