Finding the Third Proportional to 35,139 and 55,012.50

Step by Step Solution

1. Step 1: Write the proportion equation
   35,139 : 55,012.50 = 55,012.50 : x
2. Step 2: Convert to fraction form
   35,139/55,012.50 = 55,012.50/x
3. Step 3: Cross multiply
   35,139x = 55,012.50 × 55,012.50
4. Step 4: Simplify right side
   35,139x = 3,026,375,156.25
5. Step 5: Solve for x
   x = 3,026,375,156.25/35,139
6. Step 6: Final answer
   x = 86,125.82