Finding the Third Proportional to 689,362 and 1,458,210

Step by Step Solution

1. Step 1: Write the proportion equation
   689,362 : 1,458,210 = 1,458,210 : x
2. Step 2: Convert to fraction form
   689,362/1,458,210 = 1,458,210/x
3. Step 3: Cross multiply
   689,362x = 1,458,210 × 1,458,210
4. Step 4: Simplify right side
   689,362x = 2,126,376,404,100
5. Step 5: Solve for x
   x = 2,126,376,404,100/689,362
6. Step 6: Final answer
   x = 3,084,557.03