Finding the Third Proportional to 421,434 and 931,500

Step by Step Solution

1. Step 1: Write the proportion equation
   421,434 : 931,500 = 931,500 : x
2. Step 2: Convert to fraction form
   421,434/931,500 = 931,500/x
3. Step 3: Cross multiply
   421,434x = 931,500 × 931,500
4. Step 4: Simplify right side
   421,434x = 867,692,250,000
5. Step 5: Solve for x
   x = 867,692,250,000/421,434
6. Step 6: Final answer
   x = 2,058,904.24