Finding the Third Proportional to 9,829,991 and 21,549,550

Step by Step Solution

1. Step 1: Write the proportion equation
   9,829,991 : 21,549,550 = 21,549,550 : x
2. Step 2: Convert to fraction form
   9,829,991/21,549,550 = 21,549,550/x
3. Step 3: Cross multiply
   9,829,991x = 21,549,550 × 21,549,550
4. Step 4: Simplify right side
   9,829,991x = 464,383,105,202,500
5. Step 5: Solve for x
   x = 464,383,105,202,500/9,829,991
6. Step 6: Final answer
   x = 47,241,457.82