Finding the Third Proportional to 200,360 and 423,076

Step by Step Solution

1. Step 1: Write the proportion equation
   200,360 : 423,076 = 423,076 : x
2. Step 2: Convert to fraction form
   200,360/423,076 = 423,076/x
3. Step 3: Cross multiply
   200,360x = 423,076 × 423,076
4. Step 4: Simplify right side
   200,360x = 178,993,301,776
5. Step 5: Solve for x
   x = 178,993,301,776/200,360
6. Step 6: Final answer
   x = 893,358.46