Finding the Third Proportional to 100,859 and 219,460.50

Step by Step Solution

1. Step 1: Write the proportion equation
   100,859 : 219,460.50 = 219,460.50 : x
2. Step 2: Convert to fraction form
   100,859/219,460.50 = 219,460.50/x
3. Step 3: Cross multiply
   100,859x = 219,460.50 × 219,460.50
4. Step 4: Simplify right side
   100,859x = 48,162,911,060.25
5. Step 5: Solve for x
   x = 48,162,911,060.25/100,859
6. Step 6: Final answer
   x = 477,527.15