Finding the Third Proportional to 30,111.75 and 63,838.13

Step by Step Solution

1. Step 1: Write the proportion equation
   30,111.75 : 63,838.13 = 63,838.13 : x
2. Step 2: Convert to fraction form
   30,111.75/63,838.13 = 63,838.13/x
3. Step 3: Cross multiply
   30,111.75x = 63,838.13 × 63,838.13
4. Step 4: Simplify right side
   30,111.75x = 4,075,306,203.52
5. Step 5: Solve for x
   x = 4,075,306,203.52/30,111.75
6. Step 6: Final answer
   x = 135,339.40