Finding the Third Proportional to 7,798,672.50 and 12,123,312

Step by Step Solution

1. Step 1: Write the proportion equation
   7,798,672.50 : 12,123,312 = 12,123,312 : x
2. Step 2: Convert to fraction form
   7,798,672.50/12,123,312 = 12,123,312/x
3. Step 3: Cross multiply
   7,798,672.50x = 12,123,312 × 12,123,312
4. Step 4: Simplify right side
   7,798,672.50x = 146,974,693,849,344
5. Step 5: Solve for x
   x = 146,974,693,849,344/7,798,672.50
6. Step 6: Final answer
   x = 18,846,116.93