Finding the Third Proportional to 147,290 and 230,410

Step by Step Solution

1. Step 1: Write the proportion equation
   147,290 : 230,410 = 230,410 : x
2. Step 2: Convert to fraction form
   147,290/230,410 = 230,410/x
3. Step 3: Cross multiply
   147,290x = 230,410 × 230,410
4. Step 4: Simplify right side
   147,290x = 53,088,768,100
5. Step 5: Solve for x
   x = 53,088,768,100/147,290
6. Step 6: Final answer
   x = 360,437.02