Finding the Third Proportional to 311,502 and 473,410.50

Step by Step Solution

1. Step 1: Write the proportion equation
   311,502 : 473,410.50 = 473,410.50 : x
2. Step 2: Convert to fraction form
   311,502/473,410.50 = 473,410.50/x
3. Step 3: Cross multiply
   311,502x = 473,410.50 × 473,410.50
4. Step 4: Simplify right side
   311,502x = 224,117,501,510.25
5. Step 5: Solve for x
   x = 224,117,501,510.25/311,502
6. Step 6: Final answer
   x = 719,473.72