Finding the Third Proportional to 830,921 and 1,807,428

Step by Step Solution

1. Step 1: Write the proportion equation
   830,921 : 1,807,428 = 1,807,428 : x
2. Step 2: Convert to fraction form
   830,921/1,807,428 = 1,807,428/x
3. Step 3: Cross multiply
   830,921x = 1,807,428 × 1,807,428
4. Step 4: Simplify right side
   830,921x = 3,266,795,975,184
5. Step 5: Solve for x
   x = 3,266,795,975,184/830,921
6. Step 6: Final answer
   x = 3,931,536.18