Finding the Third Proportional to 52,470 and 78,718.50

Step by Step Solution

1. Step 1: Write the proportion equation
   52,470 : 78,718.50 = 78,718.50 : x
2. Step 2: Convert to fraction form
   52,470/78,718.50 = 78,718.50/x
3. Step 3: Cross multiply
   52,470x = 78,718.50 × 78,718.50
4. Step 4: Simplify right side
   52,470x = 6,196,602,242.25
5. Step 5: Solve for x
   x = 6,196,602,242.25/52,470
6. Step 6: Final answer
   x = 118,098.00