Finding the Third Proportional to 223,420 and 486,152

Step by Step Solution

1. Step 1: Write the proportion equation
   223,420 : 486,152 = 486,152 : x
2. Step 2: Convert to fraction form
   223,420/486,152 = 486,152/x
3. Step 3: Cross multiply
   223,420x = 486,152 × 486,152
4. Step 4: Simplify right side
   223,420x = 236,343,767,104
5. Step 5: Solve for x
   x = 236,343,767,104/223,420
6. Step 6: Final answer
   x = 1,057,845.17