Finding the Third Proportional to 14,121,300 and 21,162,978

Step by Step Solution

1. Step 1: Write the proportion equation
   14,121,300 : 21,162,978 = 21,162,978 : x
2. Step 2: Convert to fraction form
   14,121,300/21,162,978 = 21,162,978/x
3. Step 3: Cross multiply
   14,121,300x = 21,162,978 × 21,162,978
4. Step 4: Simplify right side
   14,121,300x = 447,871,637,828,484
5. Step 5: Solve for x
   x = 447,871,637,828,484/14,121,300
6. Step 6: Final answer
   x = 31,716,034.49