Finding the Third Proportional to 4,648,191 and 7,105,445

Step by Step Solution

1. Step 1: Write the proportion equation
   4,648,191 : 7,105,445 = 7,105,445 : x
2. Step 2: Convert to fraction form
   4,648,191/7,105,445 = 7,105,445/x
3. Step 3: Cross multiply
   4,648,191x = 7,105,445 × 7,105,445
4. Step 4: Simplify right side
   4,648,191x = 50,487,348,648,025
5. Step 5: Solve for x
   x = 50,487,348,648,025/4,648,191
6. Step 6: Final answer
   x = 10,861,719.89