Finding the Third Proportional to 690,098 and 1,047,563

Step by Step Solution

1. Step 1: Write the proportion equation
   690,098 : 1,047,563 = 1,047,563 : x
2. Step 2: Convert to fraction form
   690,098/1,047,563 = 1,047,563/x
3. Step 3: Cross multiply
   690,098x = 1,047,563 × 1,047,563
4. Step 4: Simplify right side
   690,098x = 1,097,388,238,969
5. Step 5: Solve for x
   x = 1,097,388,238,969/690,098
6. Step 6: Final answer
   x = 1,590,191.88