Finding the Third Proportional to 21,355,812 and 45,738,148.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,355,812 : 45,738,148.50 = 45,738,148.50 : x
2. Step 2: Convert to fraction form
   21,355,812/45,738,148.50 = 45,738,148.50/x
3. Step 3: Cross multiply
   21,355,812x = 45,738,148.50 × 45,738,148.50
4. Step 4: Simplify right side
   21,355,812x = 2,091,978,228,208,052.25
5. Step 5: Solve for x
   x = 2,091,978,228,208,052.25/21,355,812
6. Step 6: Final answer
   x = 97,958,262.05