Finding the Third Proportional to 30,130 and 65,619.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,130 : 65,619.50 = 65,619.50 : x
2. Step 2: Convert to fraction form
   30,130/65,619.50 = 65,619.50/x
3. Step 3: Cross multiply
   30,130x = 65,619.50 × 65,619.50
4. Step 4: Simplify right side
   30,130x = 4,305,918,780.25
5. Step 5: Solve for x
   x = 4,305,918,780.25/30,130
6. Step 6: Final answer
   x = 142,911.34