Finding the Third Proportional to 21,008,958 and 45,698,880

Step by Step Solution

1. Step 1: Write the proportion equation
   21,008,958 : 45,698,880 = 45,698,880 : x
2. Step 2: Convert to fraction form
   21,008,958/45,698,880 = 45,698,880/x
3. Step 3: Cross multiply
   21,008,958x = 45,698,880 × 45,698,880
4. Step 4: Simplify right side
   21,008,958x = 2,088,387,633,254,400
5. Step 5: Solve for x
   x = 2,088,387,633,254,400/21,008,958
6. Step 6: Final answer
   x = 99,404,626.98