Finding the Third Proportional to 42,968,946 and 68,151,412.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,968,946 : 68,151,412.50 = 68,151,412.50 : x
2. Step 2: Convert to fraction form
   42,968,946/68,151,412.50 = 68,151,412.50/x
3. Step 3: Cross multiply
   42,968,946x = 68,151,412.50 × 68,151,412.50
4. Step 4: Simplify right side
   42,968,946x = 4,644,615,025,745,156
5. Step 5: Solve for x
   x = 4,644,615,025,745,156/42,968,946
6. Step 6: Final answer
   x = 108,092,365.72