Finding the Third Proportional to 143,655 and 291,412.50

Step by Step Solution

1. Step 1: Write the proportion equation
   143,655 : 291,412.50 = 291,412.50 : x
2. Step 2: Convert to fraction form
   143,655/291,412.50 = 291,412.50/x
3. Step 3: Cross multiply
   143,655x = 291,412.50 × 291,412.50
4. Step 4: Simplify right side
   143,655x = 84,921,245,156.25
5. Step 5: Solve for x
   x = 84,921,245,156.25/143,655
6. Step 6: Final answer
   x = 591,147.16