Finding the Third Proportional to 756,888 and 1,631,280

Step by Step Solution

1. Step 1: Write the proportion equation
   756,888 : 1,631,280 = 1,631,280 : x
2. Step 2: Convert to fraction form
   756,888/1,631,280 = 1,631,280/x
3. Step 3: Cross multiply
   756,888x = 1,631,280 × 1,631,280
4. Step 4: Simplify right side
   756,888x = 2,661,074,438,400
5. Step 5: Solve for x
   x = 2,661,074,438,400/756,888
6. Step 6: Final answer
   x = 3,515,810.05