Finding the Third Proportional to 621,546 and 1,361,208

Step by Step Solution

1. Step 1: Write the proportion equation
   621,546 : 1,361,208 = 1,361,208 : x
2. Step 2: Convert to fraction form
   621,546/1,361,208 = 1,361,208/x
3. Step 3: Cross multiply
   621,546x = 1,361,208 × 1,361,208
4. Step 4: Simplify right side
   621,546x = 1,852,887,219,264
5. Step 5: Solve for x
   x = 1,852,887,219,264/621,546
6. Step 6: Final answer
   x = 2,981,094.27