Finding the Third Proportional to 215,312 and 466,912

Step by Step Solution

1. Step 1: Write the proportion equation
   215,312 : 466,912 = 466,912 : x
2. Step 2: Convert to fraction form
   215,312/466,912 = 466,912/x
3. Step 3: Cross multiply
   215,312x = 466,912 × 466,912
4. Step 4: Simplify right side
   215,312x = 218,006,815,744
5. Step 5: Solve for x
   x = 218,006,815,744/215,312
6. Step 6: Final answer
   x = 1,012,515.86