Finding the Third Proportional to 670,368 and 1,445,688

Step by Step Solution

1. Step 1: Write the proportion equation
   670,368 : 1,445,688 = 1,445,688 : x
2. Step 2: Convert to fraction form
   670,368/1,445,688 = 1,445,688/x
3. Step 3: Cross multiply
   670,368x = 1,445,688 × 1,445,688
4. Step 4: Simplify right side
   670,368x = 2,090,013,793,344
5. Step 5: Solve for x
   x = 2,090,013,793,344/670,368
6. Step 6: Final answer
   x = 3,117,711.16