Finding the Third Proportional to 345,719.25 and 754,479

Step by Step Solution

1. Step 1: Write the proportion equation
   345,719.25 : 754,479 = 754,479 : x
2. Step 2: Convert to fraction form
   345,719.25/754,479 = 754,479/x
3. Step 3: Cross multiply
   345,719.25x = 754,479 × 754,479
4. Step 4: Simplify right side
   345,719.25x = 569,238,561,441
5. Step 5: Solve for x
   x = 569,238,561,441/345,719.25
6. Step 6: Final answer
   x = 1,646,534.18