Finding the Third Proportional to 776,772 and 1,665,432

Step by Step Solution

1. Step 1: Write the proportion equation
   776,772 : 1,665,432 = 1,665,432 : x
2. Step 2: Convert to fraction form
   776,772/1,665,432 = 1,665,432/x
3. Step 3: Cross multiply
   776,772x = 1,665,432 × 1,665,432
4. Step 4: Simplify right side
   776,772x = 2,773,663,746,624
5. Step 5: Solve for x
   x = 2,773,663,746,624/776,772
6. Step 6: Final answer
   x = 3,570,756.60