Finding the Third Proportional to 621,342 and 1,358,982

Step by Step Solution

1. Step 1: Write the proportion equation
   621,342 : 1,358,982 = 1,358,982 : x
2. Step 2: Convert to fraction form
   621,342/1,358,982 = 1,358,982/x
3. Step 3: Cross multiply
   621,342x = 1,358,982 × 1,358,982
4. Step 4: Simplify right side
   621,342x = 1,846,832,076,324
5. Step 5: Solve for x
   x = 1,846,832,076,324/621,342
6. Step 6: Final answer
   x = 2,972,327.76