Finding the Third Proportional to 434,583 and 698,044.50

Step by Step Solution

1. Step 1: Write the proportion equation
   434,583 : 698,044.50 = 698,044.50 : x
2. Step 2: Convert to fraction form
   434,583/698,044.50 = 698,044.50/x
3. Step 3: Cross multiply
   434,583x = 698,044.50 × 698,044.50
4. Step 4: Simplify right side
   434,583x = 487,266,123,980.25
5. Step 5: Solve for x
   x = 487,266,123,980.25/434,583
6. Step 6: Final answer
   x = 1,121,226.84