Finding the Third Proportional to 687,070.50 and 1,010,080.50

Step by Step Solution

1. Step 1: Write the proportion equation
   687,070.50 : 1,010,080.50 = 1,010,080.50 : x
2. Step 2: Convert to fraction form
   687,070.50/1,010,080.50 = 1,010,080.50/x
3. Step 3: Cross multiply
   687,070.50x = 1,010,080.50 × 1,010,080.50
4. Step 4: Simplify right side
   687,070.50x = 1,020,262,616,480.25
5. Step 5: Solve for x
   x = 1,020,262,616,480.25/687,070.50
6. Step 6: Final answer
   x = 1,484,946.04