Finding the Third Proportional to 7,881,377 and 16,978,564

Step by Step Solution

1. Step 1: Write the proportion equation
   7,881,377 : 16,978,564 = 16,978,564 : x
2. Step 2: Convert to fraction form
   7,881,377/16,978,564 = 16,978,564/x
3. Step 3: Cross multiply
   7,881,377x = 16,978,564 × 16,978,564
4. Step 4: Simplify right side
   7,881,377x = 288,271,635,502,096
5. Step 5: Solve for x
   x = 288,271,635,502,096/7,881,377
6. Step 6: Final answer
   x = 36,576,303.29