Finding the Third Proportional to 100,716 and 148,290

Step by Step Solution

1. Step 1: Write the proportion equation
   100,716 : 148,290 = 148,290 : x
2. Step 2: Convert to fraction form
   100,716/148,290 = 148,290/x
3. Step 3: Cross multiply
   100,716x = 148,290 × 148,290
4. Step 4: Simplify right side
   100,716x = 21,989,924,100
5. Step 5: Solve for x
   x = 21,989,924,100/100,716
6. Step 6: Final answer
   x = 218,335.96