Finding the Third Proportional to 690,012 and 1,047,465

Step by Step Solution

1. Step 1: Write the proportion equation
   690,012 : 1,047,465 = 1,047,465 : x
2. Step 2: Convert to fraction form
   690,012/1,047,465 = 1,047,465/x
3. Step 3: Cross multiply
   690,012x = 1,047,465 × 1,047,465
4. Step 4: Simplify right side
   690,012x = 1,097,182,926,225
5. Step 5: Solve for x
   x = 1,097,182,926,225/690,012
6. Step 6: Final answer
   x = 1,590,092.53