Finding the Third Proportional to 21,355,814 and 45,738,153

Step by Step Solution

1. Step 1: Write the proportion equation
   21,355,814 : 45,738,153 = 45,738,153 : x
2. Step 2: Convert to fraction form
   21,355,814/45,738,153 = 45,738,153/x
3. Step 3: Cross multiply
   21,355,814x = 45,738,153 × 45,738,153
4. Step 4: Simplify right side
   21,355,814x = 2,091,978,639,851,409
5. Step 5: Solve for x
   x = 2,091,978,639,851,409/21,355,814
6. Step 6: Final answer
   x = 97,958,272.15