Finding the Third Proportional to 12,873,818 and 27,616,792

Step by Step Solution

1. Step 1: Write the proportion equation
   12,873,818 : 27,616,792 = 27,616,792 : x
2. Step 2: Convert to fraction form
   12,873,818/27,616,792 = 27,616,792/x
3. Step 3: Cross multiply
   12,873,818x = 27,616,792 × 27,616,792
4. Step 4: Simplify right side
   12,873,818x = 762,687,200,371,264
5. Step 5: Solve for x
   x = 762,687,200,371,264/12,873,818
6. Step 6: Final answer
   x = 59,243,279.68