Finding the Third Proportional to 551,109 and 780,034

Step by Step Solution

1. Step 1: Write the proportion equation
   551,109 : 780,034 = 780,034 : x
2. Step 2: Convert to fraction form
   551,109/780,034 = 780,034/x
3. Step 3: Cross multiply
   551,109x = 780,034 × 780,034
4. Step 4: Simplify right side
   551,109x = 608,453,041,156
5. Step 5: Solve for x
   x = 608,453,041,156/551,109
6. Step 6: Final answer
   x = 1,104,052.09