Finding the Third Proportional to 415,467 and 918,121.50

Step by Step Solution

1. Step 1: Write the proportion equation
   415,467 : 918,121.50 = 918,121.50 : x
2. Step 2: Convert to fraction form
   415,467/918,121.50 = 918,121.50/x
3. Step 3: Cross multiply
   415,467x = 918,121.50 × 918,121.50
4. Step 4: Simplify right side
   415,467x = 842,947,088,762.25
5. Step 5: Solve for x
   x = 842,947,088,762.25/415,467
6. Step 6: Final answer
   x = 2,028,914.66