Finding the Third Proportional to 12,215,780 and 18,897,574

Step by Step Solution

1. Step 1: Write the proportion equation
   12,215,780 : 18,897,574 = 18,897,574 : x
2. Step 2: Convert to fraction form
   12,215,780/18,897,574 = 18,897,574/x
3. Step 3: Cross multiply
   12,215,780x = 18,897,574 × 18,897,574
4. Step 4: Simplify right side
   12,215,780x = 357,118,303,085,476
5. Step 5: Solve for x
   x = 357,118,303,085,476/12,215,780
6. Step 6: Final answer
   x = 29,234,179.32