Finding the Third Proportional to 587,412 and 908,779.50

Step by Step Solution

1. Step 1: Write the proportion equation
   587,412 : 908,779.50 = 908,779.50 : x
2. Step 2: Convert to fraction form
   587,412/908,779.50 = 908,779.50/x
3. Step 3: Cross multiply
   587,412x = 908,779.50 × 908,779.50
4. Step 4: Simplify right side
   587,412x = 825,880,179,620.25
5. Step 5: Solve for x
   x = 825,880,179,620.25/587,412
6. Step 6: Final answer
   x = 1,405,964.09