Finding the Third Proportional to 12,978,144 and 30,043,548

Step by Step Solution

1. Step 1: Write the proportion equation
   12,978,144 : 30,043,548 = 30,043,548 : x
2. Step 2: Convert to fraction form
   12,978,144/30,043,548 = 30,043,548/x
3. Step 3: Cross multiply
   12,978,144x = 30,043,548 × 30,043,548
4. Step 4: Simplify right side
   12,978,144x = 902,614,776,428,304
5. Step 5: Solve for x
   x = 902,614,776,428,304/12,978,144
6. Step 6: Final answer
   x = 69,548,833.52