Finding the Third Proportional to 112,398 and 145,990.50

Step by Step Solution

1. Step 1: Write the proportion equation
   112,398 : 145,990.50 = 145,990.50 : x
2. Step 2: Convert to fraction form
   112,398/145,990.50 = 145,990.50/x
3. Step 3: Cross multiply
   112,398x = 145,990.50 × 145,990.50
4. Step 4: Simplify right side
   112,398x = 21,313,226,090.25
5. Step 5: Solve for x
   x = 21,313,226,090.25/112,398
6. Step 6: Final answer
   x = 189,622.82