Finding the Third Proportional to 58,423.50 and 85,675.50

Step by Step Solution

1. Step 1: Write the proportion equation
   58,423.50 : 85,675.50 = 85,675.50 : x
2. Step 2: Convert to fraction form
   58,423.50/85,675.50 = 85,675.50/x
3. Step 3: Cross multiply
   58,423.50x = 85,675.50 × 85,675.50
4. Step 4: Simplify right side
   58,423.50x = 7,340,291,300.25
5. Step 5: Solve for x
   x = 7,340,291,300.25/58,423.50
6. Step 6: Final answer
   x = 125,639.36