Finding the Third Proportional to 143,659.50 and 291,420

Step by Step Solution

1. Step 1: Write the proportion equation
   143,659.50 : 291,420 = 291,420 : x
2. Step 2: Convert to fraction form
   143,659.50/291,420 = 291,420/x
3. Step 3: Cross multiply
   143,659.50x = 291,420 × 291,420
4. Step 4: Simplify right side
   143,659.50x = 84,925,616,400
5. Step 5: Solve for x
   x = 84,925,616,400/143,659.50
6. Step 6: Final answer
   x = 591,159.07