Finding the Third Proportional to 290,196 and 410,994

Step by Step Solution

1. Step 1: Write the proportion equation
   290,196 : 410,994 = 410,994 : x
2. Step 2: Convert to fraction form
   290,196/410,994 = 410,994/x
3. Step 3: Cross multiply
   290,196x = 410,994 × 410,994
4. Step 4: Simplify right side
   290,196x = 168,916,068,036
5. Step 5: Solve for x
   x = 168,916,068,036/290,196
6. Step 6: Final answer
   x = 582,075.80