Finding the Third Proportional to 71,485.50 and 106,012.50

Step by Step Solution

1. Step 1: Write the proportion equation
   71,485.50 : 106,012.50 = 106,012.50 : x
2. Step 2: Convert to fraction form
   71,485.50/106,012.50 = 106,012.50/x
3. Step 3: Cross multiply
   71,485.50x = 106,012.50 × 106,012.50
4. Step 4: Simplify right side
   71,485.50x = 11,238,650,156.25
5. Step 5: Solve for x
   x = 11,238,650,156.25/71,485.50
6. Step 6: Final answer
   x = 157,215.80