Finding the Third Proportional to 137,085,912 and 296,742,960

Step by Step Solution

1. Step 1: Write the proportion equation
   137,085,912 : 296,742,960 = 296,742,960 : x
2. Step 2: Convert to fraction form
   137,085,912/296,742,960 = 296,742,960/x
3. Step 3: Cross multiply
   137,085,912x = 296,742,960 × 296,742,960
4. Step 4: Simplify right side
   137,085,912x = 88,056,384,309,561,600
5. Step 5: Solve for x
   x = 88,056,384,309,561,600/137,085,912
6. Step 6: Final answer
   x = 642,344,519.76