Finding the Third Proportional to 141,654 and 287,412

Step by Step Solution

1. Step 1: Write the proportion equation
   141,654 : 287,412 = 287,412 : x
2. Step 2: Convert to fraction form
   141,654/287,412 = 287,412/x
3. Step 3: Cross multiply
   141,654x = 287,412 × 287,412
4. Step 4: Simplify right side
   141,654x = 82,605,657,744
5. Step 5: Solve for x
   x = 82,605,657,744/141,654
6. Step 6: Final answer
   x = 583,150.90