Finding the Third Proportional to 621,254 and 1,358,824

Step by Step Solution

1. Step 1: Write the proportion equation
   621,254 : 1,358,824 = 1,358,824 : x
2. Step 2: Convert to fraction form
   621,254/1,358,824 = 1,358,824/x
3. Step 3: Cross multiply
   621,254x = 1,358,824 × 1,358,824
4. Step 4: Simplify right side
   621,254x = 1,846,402,662,976
5. Step 5: Solve for x
   x = 1,846,402,662,976/621,254
6. Step 6: Final answer
   x = 2,972,057.59