Finding the Third Proportional to 3,432,644 and 7,404,840

Step by Step Solution

1. Step 1: Write the proportion equation
   3,432,644 : 7,404,840 = 7,404,840 : x
2. Step 2: Convert to fraction form
   3,432,644/7,404,840 = 7,404,840/x
3. Step 3: Cross multiply
   3,432,644x = 7,404,840 × 7,404,840
4. Step 4: Simplify right side
   3,432,644x = 54,831,655,425,600
5. Step 5: Solve for x
   x = 54,831,655,425,600/3,432,644
6. Step 6: Final answer
   x = 15,973,592.20