Finding the Third Proportional to 12,978,228 and 30,043,758

Step by Step Solution

1. Step 1: Write the proportion equation
   12,978,228 : 30,043,758 = 30,043,758 : x
2. Step 2: Convert to fraction form
   12,978,228/30,043,758 = 30,043,758/x
3. Step 3: Cross multiply
   12,978,228x = 30,043,758 × 30,043,758
4. Step 4: Simplify right side
   12,978,228x = 902,627,394,762,564
5. Step 5: Solve for x
   x = 902,627,394,762,564/12,978,228
6. Step 6: Final answer
   x = 69,549,355.64