Finding the Third Proportional to 2,131,712 and 4,567,312

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131,712 : 4,567,312 = 4,567,312 : x
2. Step 2: Convert to fraction form
   2,131,712/4,567,312 = 4,567,312/x
3. Step 3: Cross multiply
   2,131,712x = 4,567,312 × 4,567,312
4. Step 4: Simplify right side
   2,131,712x = 20,860,338,905,344
5. Step 5: Solve for x
   x = 20,860,338,905,344/2,131,712
6. Step 6: Final answer
   x = 9,785,721.01