Finding the Third Proportional to 47,680.31 and 69,810.19

Step by Step Solution

1. Step 1: Write the proportion equation
   47,680.31 : 69,810.19 = 69,810.19 : x
2. Step 2: Convert to fraction form
   47,680.31/69,810.19 = 69,810.19/x
3. Step 3: Cross multiply
   47,680.31x = 69,810.19 × 69,810.19
4. Step 4: Simplify right side
   47,680.31x = 4,873,462,278.79
5. Step 5: Solve for x
   x = 4,873,462,278.79/47,680.31
6. Step 6: Final answer
   x = 102,211.21