Finding the Third Proportional to 58,810.50 and 89,943.75

Step by Step Solution

1. Step 1: Write the proportion equation
   58,810.50 : 89,943.75 = 89,943.75 : x
2. Step 2: Convert to fraction form
   58,810.50/89,943.75 = 89,943.75/x
3. Step 3: Cross multiply
   58,810.50x = 89,943.75 × 89,943.75
4. Step 4: Simplify right side
   58,810.50x = 8,089,878,164.06
5. Step 5: Solve for x
   x = 8,089,878,164.06/58,810.50
6. Step 6: Final answer
   x = 137,558.40