Finding the Third Proportional to 366,340 and 781,066

Step by Step Solution

1. Step 1: Write the proportion equation
   366,340 : 781,066 = 781,066 : x
2. Step 2: Convert to fraction form
   366,340/781,066 = 781,066/x
3. Step 3: Cross multiply
   366,340x = 781,066 × 781,066
4. Step 4: Simplify right side
   366,340x = 610,064,096,356
5. Step 5: Solve for x
   x = 610,064,096,356/366,340
6. Step 6: Final answer
   x = 1,665,294.80