Finding the Third Proportional to 200,352 and 423,060

Step by Step Solution

1. Step 1: Write the proportion equation
   200,352 : 423,060 = 423,060 : x
2. Step 2: Convert to fraction form
   200,352/423,060 = 423,060/x
3. Step 3: Cross multiply
   200,352x = 423,060 × 423,060
4. Step 4: Simplify right side
   200,352x = 178,979,763,600
5. Step 5: Solve for x
   x = 178,979,763,600/200,352
6. Step 6: Final answer
   x = 893,326.56