Finding the Third Proportional to 7,769,610 and 12,161,312

Step by Step Solution

1. Step 1: Write the proportion equation
   7,769,610 : 12,161,312 = 12,161,312 : x
2. Step 2: Convert to fraction form
   7,769,610/12,161,312 = 12,161,312/x
3. Step 3: Cross multiply
   7,769,610x = 12,161,312 × 12,161,312
4. Step 4: Simplify right side
   7,769,610x = 147,897,509,561,344
5. Step 5: Solve for x
   x = 147,897,509,561,344/7,769,610
6. Step 6: Final answer
   x = 19,035,383.96