Finding the Third Proportional to 348,615 and 739,086.50

Step by Step Solution

1. Step 1: Write the proportion equation
   348,615 : 739,086.50 = 739,086.50 : x
2. Step 2: Convert to fraction form
   348,615/739,086.50 = 739,086.50/x
3. Step 3: Cross multiply
   348,615x = 739,086.50 × 739,086.50
4. Step 4: Simplify right side
   348,615x = 546,248,854,482.25
5. Step 5: Solve for x
   x = 546,248,854,482.25/348,615
6. Step 6: Final answer
   x = 1,566,911.51