Finding the Third Proportional to 5,217,718 and 7,802,587

Step by Step Solution

1. Step 1: Write the proportion equation
   5,217,718 : 7,802,587 = 7,802,587 : x
2. Step 2: Convert to fraction form
   5,217,718/7,802,587 = 7,802,587/x
3. Step 3: Cross multiply
   5,217,718x = 7,802,587 × 7,802,587
4. Step 4: Simplify right side
   5,217,718x = 60,880,363,892,569
5. Step 5: Solve for x
   x = 60,880,363,892,569/5,217,718
6. Step 6: Final answer
   x = 11,668,005.80