Finding the Third Proportional to 412,935 and 611,725.50

Step by Step Solution

1. Step 1: Write the proportion equation
   412,935 : 611,725.50 = 611,725.50 : x
2. Step 2: Convert to fraction form
   412,935/611,725.50 = 611,725.50/x
3. Step 3: Cross multiply
   412,935x = 611,725.50 × 611,725.50
4. Step 4: Simplify right side
   412,935x = 374,208,087,350.25
5. Step 5: Solve for x
   x = 374,208,087,350.25/412,935
6. Step 6: Final answer
   x = 906,215.48