Finding the Third Proportional to 68,820 and 100,573.50

Step by Step Solution

1. Step 1: Write the proportion equation
   68,820 : 100,573.50 = 100,573.50 : x
2. Step 2: Convert to fraction form
   68,820/100,573.50 = 100,573.50/x
3. Step 3: Cross multiply
   68,820x = 100,573.50 × 100,573.50
4. Step 4: Simplify right side
   68,820x = 10,115,028,902.25
5. Step 5: Solve for x
   x = 10,115,028,902.25/68,820
6. Step 6: Final answer
   x = 146,978.04