Finding the Third Proportional to 99,300 and 138,904.50

Step by Step Solution

1. Step 1: Write the proportion equation
   99,300 : 138,904.50 = 138,904.50 : x
2. Step 2: Convert to fraction form
   99,300/138,904.50 = 138,904.50/x
3. Step 3: Cross multiply
   99,300x = 138,904.50 × 138,904.50
4. Step 4: Simplify right side
   99,300x = 19,294,460,120.25
5. Step 5: Solve for x
   x = 19,294,460,120.25/99,300
6. Step 6: Final answer
   x = 194,304.73