Finding the Third Proportional to 142,983 and 305,590.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,983 : 305,590.50 = 305,590.50 : x
2. Step 2: Convert to fraction form
   142,983/305,590.50 = 305,590.50/x
3. Step 3: Cross multiply
   142,983x = 305,590.50 × 305,590.50
4. Step 4: Simplify right side
   142,983x = 93,385,553,690.25
5. Step 5: Solve for x
   x = 93,385,553,690.25/142,983
6. Step 6: Final answer
   x = 653,123.47