Finding the Third Proportional to 1,210,507 and 1,813,436

Step by Step Solution

1. Step 1: Write the proportion equation
   1,210,507 : 1,813,436 = 1,813,436 : x
2. Step 2: Convert to fraction form
   1,210,507/1,813,436 = 1,813,436/x
3. Step 3: Cross multiply
   1,210,507x = 1,813,436 × 1,813,436
4. Step 4: Simplify right side
   1,210,507x = 3,288,550,126,096
5. Step 5: Solve for x
   x = 3,288,550,126,096/1,210,507
6. Step 6: Final answer
   x = 2,716,671.71