Finding the Third Proportional to 1,178,517,044 and 1,638,633,774

Step by Step Solution

1. Step 1: Write the proportion equation
   1,178,517,044 : 1,638,633,774 = 1,638,633,774 : x
2. Step 2: Convert to fraction form
   1,178,517,044/1,638,633,774 = 1,638,633,774/x
3. Step 3: Cross multiply
   1,178,517,044x = 1,638,633,774 × 1,638,633,774
4. Step 4: Simplify right side
   1,178,517,044x = 2,685,120,645,293,483,008
5. Step 5: Solve for x
   x = 2,685,120,645,293,483,008/1,178,517,044
6. Step 6: Final answer
   x = 2,278,389,318.99