Finding the Third Proportional to 293,466 and 393,085.50

Step by Step Solution

1. Step 1: Write the proportion equation
   293,466 : 393,085.50 = 393,085.50 : x
2. Step 2: Convert to fraction form
   293,466/393,085.50 = 393,085.50/x
3. Step 3: Cross multiply
   293,466x = 393,085.50 × 393,085.50
4. Step 4: Simplify right side
   293,466x = 154,516,210,310.25
5. Step 5: Solve for x
   x = 154,516,210,310.25/293,466
6. Step 6: Final answer
   x = 526,521.68