Finding the Third Proportional to 90,021 and 145,006.50

Step by Step Solution

1. Step 1: Write the proportion equation
   90,021 : 145,006.50 = 145,006.50 : x
2. Step 2: Convert to fraction form
   90,021/145,006.50 = 145,006.50/x
3. Step 3: Cross multiply
   90,021x = 145,006.50 × 145,006.50
4. Step 4: Simplify right side
   90,021x = 21,026,885,042.25
5. Step 5: Solve for x
   x = 21,026,885,042.25/90,021
6. Step 6: Final answer
   x = 233,577.55