Finding the Third Proportional to 142,983 and 297,808.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,983 : 297,808.50 = 297,808.50 : x
2. Step 2: Convert to fraction form
   142,983/297,808.50 = 297,808.50/x
3. Step 3: Cross multiply
   142,983x = 297,808.50 × 297,808.50
4. Step 4: Simplify right side
   142,983x = 88,689,902,672.25
5. Step 5: Solve for x
   x = 88,689,902,672.25/142,983
6. Step 6: Final answer
   x = 620,282.85