Finding the Third Proportional to 342,900 and 753,674.63

Step by Step Solution

1. Step 1: Write the proportion equation
   342,900 : 753,674.63 = 753,674.63 : x
2. Step 2: Convert to fraction form
   342,900/753,674.63 = 753,674.63/x
3. Step 3: Cross multiply
   342,900x = 753,674.63 × 753,674.63
4. Step 4: Simplify right side
   342,900x = 568,025,440,368.89
5. Step 5: Solve for x
   x = 568,025,440,368.89/342,900
6. Step 6: Final answer
   x = 1,656,533.80