Finding the Third Proportional to 143,114.63 and 210,493.69

Step by Step Solution

1. Step 1: Write the proportion equation
   143,114.63 : 210,493.69 = 210,493.69 : x
2. Step 2: Convert to fraction form
   143,114.63/210,493.69 = 210,493.69/x
3. Step 3: Cross multiply
   143,114.63x = 210,493.69 × 210,493.69
4. Step 4: Simplify right side
   143,114.63x = 44,307,592,477.35
5. Step 5: Solve for x
   x = 44,307,592,477.35/143,114.63
6. Step 6: Final answer
   x = 309,595.14