Finding the Third Proportional to 5,136,398 and 7,964,286

Step by Step Solution

1. Step 1: Write the proportion equation
   5,136,398 : 7,964,286 = 7,964,286 : x
2. Step 2: Convert to fraction form
   5,136,398/7,964,286 = 7,964,286/x
3. Step 3: Cross multiply
   5,136,398x = 7,964,286 × 7,964,286
4. Step 4: Simplify right side
   5,136,398x = 63,429,851,489,796
5. Step 5: Solve for x
   x = 63,429,851,489,796/5,136,398
6. Step 6: Final answer
   x = 12,349,092.01