Finding the Third Proportional to 347,064 and 760,603.50

Step by Step Solution

1. Step 1: Write the proportion equation
   347,064 : 760,603.50 = 760,603.50 : x
2. Step 2: Convert to fraction form
   347,064/760,603.50 = 760,603.50/x
3. Step 3: Cross multiply
   347,064x = 760,603.50 × 760,603.50
4. Step 4: Simplify right side
   347,064x = 578,517,684,212.25
5. Step 5: Solve for x
   x = 578,517,684,212.25/347,064
6. Step 6: Final answer
   x = 1,666,890.50