Finding the Third Proportional to 9,911,630 and 13,957,969

Step by Step Solution

1. Step 1: Write the proportion equation
   9,911,630 : 13,957,969 = 13,957,969 : x
2. Step 2: Convert to fraction form
   9,911,630/13,957,969 = 13,957,969/x
3. Step 3: Cross multiply
   9,911,630x = 13,957,969 × 13,957,969
4. Step 4: Simplify right side
   9,911,630x = 194,824,898,604,961
5. Step 5: Solve for x
   x = 194,824,898,604,961/9,911,630
6. Step 6: Final answer
   x = 19,656,191.63