Finding the Third Proportional to 156,624 and 335,412

Step by Step Solution

1. Step 1: Write the proportion equation
   156,624 : 335,412 = 335,412 : x
2. Step 2: Convert to fraction form
   156,624/335,412 = 335,412/x
3. Step 3: Cross multiply
   156,624x = 335,412 × 335,412
4. Step 4: Simplify right side
   156,624x = 112,501,209,744
5. Step 5: Solve for x
   x = 112,501,209,744/156,624
6. Step 6: Final answer
   x = 718,288.45