Finding the Third Proportional to 905,430 and 1,976,730

Step by Step Solution

1. Step 1: Write the proportion equation
   905,430 : 1,976,730 = 1,976,730 : x
2. Step 2: Convert to fraction form
   905,430/1,976,730 = 1,976,730/x
3. Step 3: Cross multiply
   905,430x = 1,976,730 × 1,976,730
4. Step 4: Simplify right side
   905,430x = 3,907,461,492,900
5. Step 5: Solve for x
   x = 3,907,461,492,900/905,430
6. Step 6: Final answer
   x = 4,315,586.51