Finding the Third Proportional to 66,103 and 99,300.50

Step by Step Solution

1. Step 1: Write the proportion equation
   66,103 : 99,300.50 = 99,300.50 : x
2. Step 2: Convert to fraction form
   66,103/99,300.50 = 99,300.50/x
3. Step 3: Cross multiply
   66,103x = 99,300.50 × 99,300.50
4. Step 4: Simplify right side
   66,103x = 9,860,589,300.25
5. Step 5: Solve for x
   x = 9,860,589,300.25/66,103
6. Step 6: Final answer
   x = 149,170.07