Finding the Third Proportional to 99,578 and 152,403

Step by Step Solution

1. Step 1: Write the proportion equation
   99,578 : 152,403 = 152,403 : x
2. Step 2: Convert to fraction form
   99,578/152,403 = 152,403/x
3. Step 3: Cross multiply
   99,578x = 152,403 × 152,403
4. Step 4: Simplify right side
   99,578x = 23,226,674,409
5. Step 5: Solve for x
   x = 23,226,674,409/99,578
6. Step 6: Final answer
   x = 233,251.06