Finding the Third Proportional to 645,300 and 1,002,465

Step by Step Solution

1. Step 1: Write the proportion equation
   645,300 : 1,002,465 = 1,002,465 : x
2. Step 2: Convert to fraction form
   645,300/1,002,465 = 1,002,465/x
3. Step 3: Cross multiply
   645,300x = 1,002,465 × 1,002,465
4. Step 4: Simplify right side
   645,300x = 1,004,936,076,225
5. Step 5: Solve for x
   x = 1,004,936,076,225/645,300
6. Step 6: Final answer
   x = 1,557,316.10