Finding the Third Proportional to 194,258 and 423,820

Step by Step Solution

1. Step 1: Write the proportion equation
   194,258 : 423,820 = 423,820 : x
2. Step 2: Convert to fraction form
   194,258/423,820 = 423,820/x
3. Step 3: Cross multiply
   194,258x = 423,820 × 423,820
4. Step 4: Simplify right side
   194,258x = 179,623,392,400
5. Step 5: Solve for x
   x = 179,623,392,400/194,258
6. Step 6: Final answer
   x = 924,664.07