Finding the Third Proportional to 890,308 and 1,886,560

Step by Step Solution

1. Step 1: Write the proportion equation
   890,308 : 1,886,560 = 1,886,560 : x
2. Step 2: Convert to fraction form
   890,308/1,886,560 = 1,886,560/x
3. Step 3: Cross multiply
   890,308x = 1,886,560 × 1,886,560
4. Step 4: Simplify right side
   890,308x = 3,559,108,633,600
5. Step 5: Solve for x
   x = 3,559,108,633,600/890,308
6. Step 6: Final answer
   x = 3,997,615.02