Finding the Third Proportional to 72,912 and 104,263.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,912 : 104,263.50 = 104,263.50 : x
2. Step 2: Convert to fraction form
   72,912/104,263.50 = 104,263.50/x
3. Step 3: Cross multiply
   72,912x = 104,263.50 × 104,263.50
4. Step 4: Simplify right side
   72,912x = 10,870,877,432.25
5. Step 5: Solve for x
   x = 10,870,877,432.25/72,912
6. Step 6: Final answer
   x = 149,095.86