Finding the Third Proportional to 53,629.31 and 78,894.84

Step by Step Solution

1. Step 1: Write the proportion equation
   53,629.31 : 78,894.84 = 78,894.84 : x
2. Step 2: Convert to fraction form
   53,629.31/78,894.84 = 78,894.84/x
3. Step 3: Cross multiply
   53,629.31x = 78,894.84 × 78,894.84
4. Step 4: Simplify right side
   53,629.31x = 6,224,396,370.34
5. Step 5: Solve for x
   x = 6,224,396,370.34/53,629.31
6. Step 6: Final answer
   x = 116,063.33