Finding the Third Proportional to 869,620 and 1,300,432

Step by Step Solution

1. Step 1: Write the proportion equation
   869,620 : 1,300,432 = 1,300,432 : x
2. Step 2: Convert to fraction form
   869,620/1,300,432 = 1,300,432/x
3. Step 3: Cross multiply
   869,620x = 1,300,432 × 1,300,432
4. Step 4: Simplify right side
   869,620x = 1,691,123,386,624
5. Step 5: Solve for x
   x = 1,691,123,386,624/869,620
6. Step 6: Final answer
   x = 1,944,669.38