Finding the Third Proportional to 7,881,384 and 16,978,575

Step by Step Solution

1. Step 1: Write the proportion equation
   7,881,384 : 16,978,575 = 16,978,575 : x
2. Step 2: Convert to fraction form
   7,881,384/16,978,575 = 16,978,575/x
3. Step 3: Cross multiply
   7,881,384x = 16,978,575 × 16,978,575
4. Step 4: Simplify right side
   7,881,384x = 288,272,009,030,625
5. Step 5: Solve for x
   x = 288,272,009,030,625/7,881,384
6. Step 6: Final answer
   x = 36,576,318.20