Finding the Third Proportional to 5,420,717 and 7,432,830

Step by Step Solution

1. Step 1: Write the proportion equation
   5,420,717 : 7,432,830 = 7,432,830 : x
2. Step 2: Convert to fraction form
   5,420,717/7,432,830 = 7,432,830/x
3. Step 3: Cross multiply
   5,420,717x = 7,432,830 × 7,432,830
4. Step 4: Simplify right side
   5,420,717x = 55,246,961,808,900
5. Step 5: Solve for x
   x = 55,246,961,808,900/5,420,717
6. Step 6: Final answer
   x = 10,191,818.13