Finding the Third Proportional to 72,549 and 102,748.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,549 : 102,748.50 = 102,748.50 : x
2. Step 2: Convert to fraction form
   72,549/102,748.50 = 102,748.50/x
3. Step 3: Cross multiply
   72,549x = 102,748.50 × 102,748.50
4. Step 4: Simplify right side
   72,549x = 10,557,254,252.25
5. Step 5: Solve for x
   x = 10,557,254,252.25/72,549
6. Step 6: Final answer
   x = 145,518.95