Finding the Third Proportional to 1,335,507 and 3,149,445

Step by Step Solution

1. Step 1: Write the proportion equation
   1,335,507 : 3,149,445 = 3,149,445 : x
2. Step 2: Convert to fraction form
   1,335,507/3,149,445 = 3,149,445/x
3. Step 3: Cross multiply
   1,335,507x = 3,149,445 × 3,149,445
4. Step 4: Simplify right side
   1,335,507x = 9,919,003,808,025
5. Step 5: Solve for x
   x = 9,919,003,808,025/1,335,507
6. Step 6: Final answer
   x = 7,427,144.75