Finding the Third Proportional to 513,119 and 804,913.50

Step by Step Solution

1. Step 1: Write the proportion equation
   513,119 : 804,913.50 = 804,913.50 : x
2. Step 2: Convert to fraction form
   513,119/804,913.50 = 804,913.50/x
3. Step 3: Cross multiply
   513,119x = 804,913.50 × 804,913.50
4. Step 4: Simplify right side
   513,119x = 647,885,742,482.25
5. Step 5: Solve for x
   x = 647,885,742,482.25/513,119
6. Step 6: Final answer
   x = 1,262,642.28