Finding the Third Proportional to 5,421,400 and 7,951,030

Step by Step Solution

1. Step 1: Write the proportion equation
   5,421,400 : 7,951,030 = 7,951,030 : x
2. Step 2: Convert to fraction form
   5,421,400/7,951,030 = 7,951,030/x
3. Step 3: Cross multiply
   5,421,400x = 7,951,030 × 7,951,030
4. Step 4: Simplify right side
   5,421,400x = 63,218,878,060,900
5. Step 5: Solve for x
   x = 63,218,878,060,900/5,421,400
6. Step 6: Final answer
   x = 11,660,987.58