Finding the Third Proportional to 4,921,642 and 7,705,030

Step by Step Solution

1. Step 1: Write the proportion equation
   4,921,642 : 7,705,030 = 7,705,030 : x
2. Step 2: Convert to fraction form
   4,921,642/7,705,030 = 7,705,030/x
3. Step 3: Cross multiply
   4,921,642x = 7,705,030 × 7,705,030
4. Step 4: Simplify right side
   4,921,642x = 59,367,487,300,900
5. Step 5: Solve for x
   x = 59,367,487,300,900/4,921,642
6. Step 6: Final answer
   x = 12,062,536.71