Finding the Third Proportional to 58,725 and 78,664.50

Step by Step Solution

1. Step 1: Write the proportion equation
   58,725 : 78,664.50 = 78,664.50 : x
2. Step 2: Convert to fraction form
   58,725/78,664.50 = 78,664.50/x
3. Step 3: Cross multiply
   58,725x = 78,664.50 × 78,664.50
4. Step 4: Simplify right side
   58,725x = 6,188,103,560.25
5. Step 5: Solve for x
   x = 6,188,103,560.25/58,725
6. Step 6: Final answer
   x = 105,374.26