Finding the Third Proportional to 456,988.50 and 711,513

Step by Step Solution

1. Step 1: Write the proportion equation
   456,988.50 : 711,513 = 711,513 : x
2. Step 2: Convert to fraction form
   456,988.50/711,513 = 711,513/x
3. Step 3: Cross multiply
   456,988.50x = 711,513 × 711,513
4. Step 4: Simplify right side
   456,988.50x = 506,250,749,169
5. Step 5: Solve for x
   x = 506,250,749,169/456,988.50
6. Step 6: Final answer
   x = 1,107,797.57