Finding the Third Proportional to 508,143 and 748,189.50

Step by Step Solution

1. Step 1: Write the proportion equation
   508,143 : 748,189.50 = 748,189.50 : x
2. Step 2: Convert to fraction form
   508,143/748,189.50 = 748,189.50/x
3. Step 3: Cross multiply
   508,143x = 748,189.50 × 748,189.50
4. Step 4: Simplify right side
   508,143x = 559,787,527,910.25
5. Step 5: Solve for x
   x = 559,787,527,910.25/508,143
6. Step 6: Final answer
   x = 1,101,633.85