Finding the Third Proportional to 4,748,649 and 9,664,980

Step by Step Solution

1. Step 1: Write the proportion equation
   4,748,649 : 9,664,980 = 9,664,980 : x
2. Step 2: Convert to fraction form
   4,748,649/9,664,980 = 9,664,980/x
3. Step 3: Cross multiply
   4,748,649x = 9,664,980 × 9,664,980
4. Step 4: Simplify right side
   4,748,649x = 93,411,838,400,400
5. Step 5: Solve for x
   x = 93,411,838,400,400/4,748,649
6. Step 6: Final answer
   x = 19,671,245.11