Finding the Third Proportional to 531,495 and 807,079.50

Step by Step Solution

1. Step 1: Write the proportion equation
   531,495 : 807,079.50 = 807,079.50 : x
2. Step 2: Convert to fraction form
   531,495/807,079.50 = 807,079.50/x
3. Step 3: Cross multiply
   531,495x = 807,079.50 × 807,079.50
4. Step 4: Simplify right side
   531,495x = 651,377,319,320.25
5. Step 5: Solve for x
   x = 651,377,319,320.25/531,495
6. Step 6: Final answer
   x = 1,225,556.81