Finding the Third Proportional to 316,521 and 747,184.50

Step by Step Solution

1. Step 1: Write the proportion equation
   316,521 : 747,184.50 = 747,184.50 : x
2. Step 2: Convert to fraction form
   316,521/747,184.50 = 747,184.50/x
3. Step 3: Cross multiply
   316,521x = 747,184.50 × 747,184.50
4. Step 4: Simplify right side
   316,521x = 558,284,677,040.25
5. Step 5: Solve for x
   x = 558,284,677,040.25/316,521
6. Step 6: Final answer
   x = 1,763,815.60