Finding the Third Proportional to 9,965,280 and 21,583,404

Step by Step Solution

1. Step 1: Write the proportion equation
   9,965,280 : 21,583,404 = 21,583,404 : x
2. Step 2: Convert to fraction form
   9,965,280/21,583,404 = 21,583,404/x
3. Step 3: Cross multiply
   9,965,280x = 21,583,404 × 21,583,404
4. Step 4: Simplify right side
   9,965,280x = 465,843,328,227,216
5. Step 5: Solve for x
   x = 465,843,328,227,216/9,965,280
6. Step 6: Final answer
   x = 46,746,637.15