Finding the Third Proportional to 7,980,267 and 12,382,089

Step by Step Solution

1. Step 1: Write the proportion equation
   7,980,267 : 12,382,089 = 12,382,089 : x
2. Step 2: Convert to fraction form
   7,980,267/12,382,089 = 12,382,089/x
3. Step 3: Cross multiply
   7,980,267x = 12,382,089 × 12,382,089
4. Step 4: Simplify right side
   7,980,267x = 153,316,128,003,921
5. Step 5: Solve for x
   x = 153,316,128,003,921/7,980,267
6. Step 6: Final answer
   x = 19,211,904.56