Finding the Third Proportional to 51,620.63 and 69,654.94

Step by Step Solution

1. Step 1: Write the proportion equation
   51,620.63 : 69,654.94 = 69,654.94 : x
2. Step 2: Convert to fraction form
   51,620.63/69,654.94 = 69,654.94/x
3. Step 3: Cross multiply
   51,620.63x = 69,654.94 × 69,654.94
4. Step 4: Simplify right side
   51,620.63x = 4,851,810,318.13
5. Step 5: Solve for x
   x = 4,851,810,318.13/51,620.63
6. Step 6: Final answer
   x = 93,989.76