Finding the Third Proportional to 45,438 and 99,300

Step by Step Solution

1. Step 1: Write the proportion equation
   45,438 : 99,300 = 99,300 : x
2. Step 2: Convert to fraction form
   45,438/99,300 = 99,300/x
3. Step 3: Cross multiply
   45,438x = 99,300 × 99,300
4. Step 4: Simplify right side
   45,438x = 9,860,490,000
5. Step 5: Solve for x
   x = 9,860,490,000/45,438
6. Step 6: Final answer
   x = 217,009.77