Finding the Third Proportional to 38,640 and 58,501.50

Step by Step Solution

1. Step 1: Write the proportion equation
   38,640 : 58,501.50 = 58,501.50 : x
2. Step 2: Convert to fraction form
   38,640/58,501.50 = 58,501.50/x
3. Step 3: Cross multiply
   38,640x = 58,501.50 × 58,501.50
4. Step 4: Simplify right side
   38,640x = 3,422,425,502.25
5. Step 5: Solve for x
   x = 3,422,425,502.25/38,640
6. Step 6: Final answer
   x = 88,572.09