Finding the Third Proportional to 345,672 and 718,933.50

Step by Step Solution

1. Step 1: Write the proportion equation
   345,672 : 718,933.50 = 718,933.50 : x
2. Step 2: Convert to fraction form
   345,672/718,933.50 = 718,933.50/x
3. Step 3: Cross multiply
   345,672x = 718,933.50 × 718,933.50
4. Step 4: Simplify right side
   345,672x = 516,865,377,422.25
5. Step 5: Solve for x
   x = 516,865,377,422.25/345,672
6. Step 6: Final answer
   x = 1,495,248.03