Finding the Third Proportional to 786,402 and 1,684,854

Step by Step Solution

1. Step 1: Write the proportion equation
   786,402 : 1,684,854 = 1,684,854 : x
2. Step 2: Convert to fraction form
   786,402/1,684,854 = 1,684,854/x
3. Step 3: Cross multiply
   786,402x = 1,684,854 × 1,684,854
4. Step 4: Simplify right side
   786,402x = 2,838,733,001,316
5. Step 5: Solve for x
   x = 2,838,733,001,316/786,402
6. Step 6: Final answer
   x = 3,609,773.37