Finding the Third Proportional to 1,372,584 and 1,980,120

Step by Step Solution

1. Step 1: Write the proportion equation
   1,372,584 : 1,980,120 = 1,980,120 : x
2. Step 2: Convert to fraction form
   1,372,584/1,980,120 = 1,980,120/x
3. Step 3: Cross multiply
   1,372,584x = 1,980,120 × 1,980,120
4. Step 4: Simplify right side
   1,372,584x = 3,920,875,214,400
5. Step 5: Solve for x
   x = 3,920,875,214,400/1,372,584
6. Step 6: Final answer
   x = 2,856,564.85