Finding the Third Proportional to 53,870.63 and 109,279.69

Step by Step Solution

1. Step 1: Write the proportion equation
   53,870.63 : 109,279.69 = 109,279.69 : x
2. Step 2: Convert to fraction form
   53,870.63/109,279.69 = 109,279.69/x
3. Step 3: Cross multiply
   53,870.63x = 109,279.69 × 109,279.69
4. Step 4: Simplify right side
   53,870.63x = 11,942,050,100.10
5. Step 5: Solve for x
   x = 11,942,050,100.10/53,870.63
6. Step 6: Final answer
   x = 221,680.18