Finding the Third Proportional to 645,492 and 1,364,862

Step by Step Solution

1. Step 1: Write the proportion equation
   645,492 : 1,364,862 = 1,364,862 : x
2. Step 2: Convert to fraction form
   645,492/1,364,862 = 1,364,862/x
3. Step 3: Cross multiply
   645,492x = 1,364,862 × 1,364,862
4. Step 4: Simplify right side
   645,492x = 1,862,848,279,044
5. Step 5: Solve for x
   x = 1,862,848,279,044/645,492
6. Step 6: Final answer
   x = 2,885,935.50