Finding the Third Proportional to 58,912.31 and 69,300.56

Step by Step Solution

1. Step 1: Write the proportion equation
   58,912.31 : 69,300.56 = 69,300.56 : x
2. Step 2: Convert to fraction form
   58,912.31/69,300.56 = 69,300.56/x
3. Step 3: Cross multiply
   58,912.31x = 69,300.56 × 69,300.56
4. Step 4: Simplify right side
   58,912.31x = 4,802,567,962.82
5. Step 5: Solve for x
   x = 4,802,567,962.82/58,912.31
6. Step 6: Final answer
   x = 81,520.62