Finding the Third Proportional to 810,128 and 1,875,479

Step by Step Solution

1. Step 1: Write the proportion equation
   810,128 : 1,875,479 = 1,875,479 : x
2. Step 2: Convert to fraction form
   810,128/1,875,479 = 1,875,479/x
3. Step 3: Cross multiply
   810,128x = 1,875,479 × 1,875,479
4. Step 4: Simplify right side
   810,128x = 3,517,421,479,441
5. Step 5: Solve for x
   x = 3,517,421,479,441/810,128
6. Step 6: Final answer
   x = 4,341,809.54