Finding the Third Proportional to 1,372,588 and 1,980,126

Step by Step Solution

1. Step 1: Write the proportion equation
   1,372,588 : 1,980,126 = 1,980,126 : x
2. Step 2: Convert to fraction form
   1,372,588/1,980,126 = 1,980,126/x
3. Step 3: Cross multiply
   1,372,588x = 1,980,126 × 1,980,126
4. Step 4: Simplify right side
   1,372,588x = 3,920,898,975,876
5. Step 5: Solve for x
   x = 3,920,898,975,876/1,372,588
6. Step 6: Final answer
   x = 2,856,573.84