Finding the Third Proportional to 12,377,349 and 18,921,802.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,377,349 : 18,921,802.50 = 18,921,802.50 : x
2. Step 2: Convert to fraction form
   12,377,349/18,921,802.50 = 18,921,802.50/x
3. Step 3: Cross multiply
   12,377,349x = 18,921,802.50 × 18,921,802.50
4. Step 4: Simplify right side
   12,377,349x = 358,034,609,849,006.25
5. Step 5: Solve for x
   x = 358,034,609,849,006.25/12,377,349
6. Step 6: Final answer
   x = 28,926,598.89