Finding the Third Proportional to 16,437,888 and 21,811,200

Step by Step Solution

1. Step 1: Write the proportion equation
   16,437,888 : 21,811,200 = 21,811,200 : x
2. Step 2: Convert to fraction form
   16,437,888/21,811,200 = 21,811,200/x
3. Step 3: Cross multiply
   16,437,888x = 21,811,200 × 21,811,200
4. Step 4: Simplify right side
   16,437,888x = 475,728,445,440,000
5. Step 5: Solve for x
   x = 475,728,445,440,000/16,437,888
6. Step 6: Final answer
   x = 28,940,971.34