Finding the Third Proportional to 4,959,972 and 7,020,290

Step by Step Solution

1. Step 1: Write the proportion equation
   4,959,972 : 7,020,290 = 7,020,290 : x
2. Step 2: Convert to fraction form
   4,959,972/7,020,290 = 7,020,290/x
3. Step 3: Cross multiply
   4,959,972x = 7,020,290 × 7,020,290
4. Step 4: Simplify right side
   4,959,972x = 49,284,471,684,100
5. Step 5: Solve for x
   x = 49,284,471,684,100/4,959,972
6. Step 6: Final answer
   x = 9,936,441.51