Finding the Third Proportional to 1,152,947 and 1,642,390

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152,947 : 1,642,390 = 1,642,390 : x
2. Step 2: Convert to fraction form
   1,152,947/1,642,390 = 1,642,390/x
3. Step 3: Cross multiply
   1,152,947x = 1,642,390 × 1,642,390
4. Step 4: Simplify right side
   1,152,947x = 2,697,444,912,100
5. Step 5: Solve for x
   x = 2,697,444,912,100/1,152,947
6. Step 6: Final answer
   x = 2,339,608.77