Finding the Third Proportional to 8,072,748 and 12,143,142

Step by Step Solution

1. Step 1: Write the proportion equation
   8,072,748 : 12,143,142 = 12,143,142 : x
2. Step 2: Convert to fraction form
   8,072,748/12,143,142 = 12,143,142/x
3. Step 3: Cross multiply
   8,072,748x = 12,143,142 × 12,143,142
4. Step 4: Simplify right side
   8,072,748x = 147,455,897,632,164
5. Step 5: Solve for x
   x = 147,455,897,632,164/8,072,748
6. Step 6: Final answer
   x = 18,265,886.37