Finding the Third Proportional to 62,085.50 and 138,222.50

Step by Step Solution

1. Step 1: Write the proportion equation
   62,085.50 : 138,222.50 = 138,222.50 : x
2. Step 2: Convert to fraction form
   62,085.50/138,222.50 = 138,222.50/x
3. Step 3: Cross multiply
   62,085.50x = 138,222.50 × 138,222.50
4. Step 4: Simplify right side
   62,085.50x = 19,105,459,506.25
5. Step 5: Solve for x
   x = 19,105,459,506.25/62,085.50
6. Step 6: Final answer
   x = 307,728.21