Finding the Third Proportional to 2,170,720 and 3,191,047

Step by Step Solution

1. Step 1: Write the proportion equation
   2,170,720 : 3,191,047 = 3,191,047 : x
2. Step 2: Convert to fraction form
   2,170,720/3,191,047 = 3,191,047/x
3. Step 3: Cross multiply
   2,170,720x = 3,191,047 × 3,191,047
4. Step 4: Simplify right side
   2,170,720x = 10,182,780,956,209
5. Step 5: Solve for x
   x = 10,182,780,956,209/2,170,720
6. Step 6: Final answer
   x = 4,690,969.34