Finding the Third Proportional to 856,323 and 1,865,207

Step by Step Solution

1. Step 1: Write the proportion equation
   856,323 : 1,865,207 = 1,865,207 : x
2. Step 2: Convert to fraction form
   856,323/1,865,207 = 1,865,207/x
3. Step 3: Cross multiply
   856,323x = 1,865,207 × 1,865,207
4. Step 4: Simplify right side
   856,323x = 3,478,997,152,849
5. Step 5: Solve for x
   x = 3,478,997,152,849/856,323
6. Step 6: Final answer
   x = 4,062,716.00