Finding the Third Proportional to 689,370 and 1,034,784

Step by Step Solution

1. Step 1: Write the proportion equation
   689,370 : 1,034,784 = 1,034,784 : x
2. Step 2: Convert to fraction form
   689,370/1,034,784 = 1,034,784/x
3. Step 3: Cross multiply
   689,370x = 1,034,784 × 1,034,784
4. Step 4: Simplify right side
   689,370x = 1,070,777,926,656
5. Step 5: Solve for x
   x = 1,070,777,926,656/689,370
6. Step 6: Final answer
   x = 1,553,270.27