Finding the Third Proportional to 10,812,852 and 15,117,030

Step by Step Solution

1. Step 1: Write the proportion equation
   10,812,852 : 15,117,030 = 15,117,030 : x
2. Step 2: Convert to fraction form
   10,812,852/15,117,030 = 15,117,030/x
3. Step 3: Cross multiply
   10,812,852x = 15,117,030 × 15,117,030
4. Step 4: Simplify right side
   10,812,852x = 228,524,596,020,900
5. Step 5: Solve for x
   x = 228,524,596,020,900/10,812,852
6. Step 6: Final answer
   x = 21,134,534.72