Finding the Third Proportional to 5,121,190 and 7,929,114

Step by Step Solution

1. Step 1: Write the proportion equation
   5,121,190 : 7,929,114 = 7,929,114 : x
2. Step 2: Convert to fraction form
   5,121,190/7,929,114 = 7,929,114/x
3. Step 3: Cross multiply
   5,121,190x = 7,929,114 × 7,929,114
4. Step 4: Simplify right side
   5,121,190x = 62,870,848,824,996
5. Step 5: Solve for x
   x = 62,870,848,824,996/5,121,190
6. Step 6: Final answer
   x = 12,276,609.31