Finding the Third Proportional to 153,352 and 312,963.50

Step by Step Solution

1. Step 1: Write the proportion equation
   153,352 : 312,963.50 = 312,963.50 : x
2. Step 2: Convert to fraction form
   153,352/312,963.50 = 312,963.50/x
3. Step 3: Cross multiply
   153,352x = 312,963.50 × 312,963.50
4. Step 4: Simplify right side
   153,352x = 97,946,152,332.25
5. Step 5: Solve for x
   x = 97,946,152,332.25/153,352
6. Step 6: Final answer
   x = 638,701.50