Finding the Third Proportional to 345,705 and 564,501.50

Step by Step Solution

1. Step 1: Write the proportion equation
   345,705 : 564,501.50 = 564,501.50 : x
2. Step 2: Convert to fraction form
   345,705/564,501.50 = 564,501.50/x
3. Step 3: Cross multiply
   345,705x = 564,501.50 × 564,501.50
4. Step 4: Simplify right side
   345,705x = 318,661,943,502.25
5. Step 5: Solve for x
   x = 318,661,943,502.25/345,705
6. Step 6: Final answer
   x = 921,774.18