Finding the Third Proportional to 8,931,681 and 19,375,672.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,931,681 : 19,375,672.50 = 19,375,672.50 : x
2. Step 2: Convert to fraction form
   8,931,681/19,375,672.50 = 19,375,672.50/x
3. Step 3: Cross multiply
   8,931,681x = 19,375,672.50 × 19,375,672.50
4. Step 4: Simplify right side
   8,931,681x = 375,416,684,827,256.25
5. Step 5: Solve for x
   x = 375,416,684,827,256.25/8,931,681
6. Step 6: Final answer
   x = 42,032,030.12