Finding the Third Proportional to 17,640,766 and 37,984,178

Step by Step Solution

1. Step 1: Write the proportion equation
   17,640,766 : 37,984,178 = 37,984,178 : x
2. Step 2: Convert to fraction form
   17,640,766/37,984,178 = 37,984,178/x
3. Step 3: Cross multiply
   17,640,766x = 37,984,178 × 37,984,178
4. Step 4: Simplify right side
   17,640,766x = 1,442,797,778,335,684
5. Step 5: Solve for x
   x = 1,442,797,778,335,684/17,640,766
6. Step 6: Final answer
   x = 81,787,705.72