Finding the Third Proportional to 786,208 and 1,684,602

Step by Step Solution

1. Step 1: Write the proportion equation
   786,208 : 1,684,602 = 1,684,602 : x
2. Step 2: Convert to fraction form
   786,208/1,684,602 = 1,684,602/x
3. Step 3: Cross multiply
   786,208x = 1,684,602 × 1,684,602
4. Step 4: Simplify right side
   786,208x = 2,837,883,898,404
5. Step 5: Solve for x
   x = 2,837,883,898,404/786,208
6. Step 6: Final answer
   x = 3,609,584.10