Finding the Third Proportional to 872,380 and 1,312,940

Step by Step Solution

1. Step 1: Write the proportion equation
   872,380 : 1,312,940 = 1,312,940 : x
2. Step 2: Convert to fraction form
   872,380/1,312,940 = 1,312,940/x
3. Step 3: Cross multiply
   872,380x = 1,312,940 × 1,312,940
4. Step 4: Simplify right side
   872,380x = 1,723,811,443,600
5. Step 5: Solve for x
   x = 1,723,811,443,600/872,380
6. Step 6: Final answer
   x = 1,975,986.89