Finding the Third Proportional to 4,964,690 and 7,719,139

Step by Step Solution

1. Step 1: Write the proportion equation
   4,964,690 : 7,719,139 = 7,719,139 : x
2. Step 2: Convert to fraction form
   4,964,690/7,719,139 = 7,719,139/x
3. Step 3: Cross multiply
   4,964,690x = 7,719,139 × 7,719,139
4. Step 4: Simplify right side
   4,964,690x = 59,585,106,901,321
5. Step 5: Solve for x
   x = 59,585,106,901,321/4,964,690
6. Step 6: Final answer
   x = 12,001,777.94