Finding the Third Proportional to 9,501,980 and 12,909,609

Step by Step Solution

1. Step 1: Write the proportion equation
   9,501,980 : 12,909,609 = 12,909,609 : x
2. Step 2: Convert to fraction form
   9,501,980/12,909,609 = 12,909,609/x
3. Step 3: Cross multiply
   9,501,980x = 12,909,609 × 12,909,609
4. Step 4: Simplify right side
   9,501,980x = 166,658,004,532,881
5. Step 5: Solve for x
   x = 166,658,004,532,881/9,501,980
6. Step 6: Final answer
   x = 17,539,292.29