Finding the Third Proportional to 551,095.50 and 780,013.50

Step by Step Solution

1. Step 1: Write the proportion equation
   551,095.50 : 780,013.50 = 780,013.50 : x
2. Step 2: Convert to fraction form
   551,095.50/780,013.50 = 780,013.50/x
3. Step 3: Cross multiply
   551,095.50x = 780,013.50 × 780,013.50
4. Step 4: Simplify right side
   551,095.50x = 608,421,060,182.25
5. Step 5: Solve for x
   x = 608,421,060,182.25/551,095.50
6. Step 6: Final answer
   x = 1,104,021.10