Finding the Third Proportional to 51,973.31 and 68,245.88

Step by Step Solution

1. Step 1: Write the proportion equation
   51,973.31 : 68,245.88 = 68,245.88 : x
2. Step 2: Convert to fraction form
   51,973.31/68,245.88 = 68,245.88/x
3. Step 3: Cross multiply
   51,973.31x = 68,245.88 × 68,245.88
4. Step 4: Simplify right side
   51,973.31x = 4,657,499,454.52
5. Step 5: Solve for x
   x = 4,657,499,454.52/51,973.31
6. Step 6: Final answer
   x = 89,613.29